1301220131 has 2 divisors, whose sum is σ = 1301220132. Its totient is φ = 1301220130.

The previous prime is 1301220127. The next prime is 1301220191. The reversal of 1301220131 is 1310221031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1301220131 - 2² = 1301220127 is a prime.

It is a super-2 number, since 2×1301220131² = 3386347658639314322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1301220191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650610065 + 650610066.

It is an arithmetic number, because the mean of its divisors is an integer number (650610066).

Almost surely, 2^1301220131 is an apocalyptic number.

1301220131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301220131 is an equidigital number, since it uses as much as digits as its factorization.

1301220131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1301220131 is about 36072.4289589709. The cubic root of 1301220131 is about 1091.7342230347.

Adding to 1301220131 its reverse (1310221031), we get a palindrome (2611441162).

The spelling of 1301220131 in words is "one billion, three hundred one million, two hundred twenty thousand, one hundred thirty-one".