12131133023122 has 4 divisors (see below), whose sum is σ = 18196699534686. Its totient is φ = 6065566511560.

The previous prime is 12131133023081. The next prime is 12131133023159. The reversal of 12131133023122 is 22132033113121.

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

It can be written as a sum of positive squares in only one way, i.e., 8174172620601 + 3956960402521 = 2859051^2 + 1989211^2 .

It is a super-2 number, since 2×12131133023122² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3032783255779 + ... + 3032783255782.

Almost surely, 2^{12131133023122} is an apocalyptic number.

12131133023122 is a deficient number, since it is larger than the sum of its proper divisors (6065566511564).

12131133023122 is an equidigital number, since it uses as much as digits as its factorization.

12131133023122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6065566511563.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 12131133023122 its reverse (22132033113121), we get a palindrome (34263166136243).

The spelling of 12131133023122 in words is "twelve trillion, one hundred thirty-one billion, one hundred thirty-three million, twenty-three thousand, one hundred twenty-two".