1241628211 has 4 divisors (see below), whose sum is σ = 1242379192. Its totient is φ = 1240877232.

The previous prime is 1241628209. The next prime is 1241628217. The reversal of 1241628211 is 1128261421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1241628211 - 2¹ = 1241628209 is a prime.

It is a super-2 number, since 2×1241628211² = 3083281228702121042, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1241628211.

It is not an unprimeable number, because it can be changed into a prime (1241628217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373005 + ... + 376318.

It is an arithmetic number, because the mean of its divisors is an integer number (310594798).

Almost surely, 2^1241628211 is an apocalyptic number.

1241628211 is a deficient number, since it is larger than the sum of its proper divisors (750981).

1241628211 is an equidigital number, since it uses as much as digits as its factorization.

1241628211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750980.

The product of its digits is 1536, while the sum is 28.

The square root of 1241628211 is about 35236.7451816992. The cubic root of 1241628211 is about 1074.8070931300.

Adding to 1241628211 its reverse (1128261421), we get a palindrome (2369889632).

The spelling of 1241628211 in words is "one billion, two hundred forty-one million, six hundred twenty-eight thousand, two hundred eleven".