12351655042 has 16 divisors (see below), whose sum is σ = 18918403992. Its totient is φ = 6046755840.

The previous prime is 12351655009. The next prime is 12351655051. The reversal of 12351655042 is 24055615321.

It can be written as a sum of positive squares in 4 ways, for example, as 12338988561 + 12666481 = 111081^2 + 3559^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12351654989 and 12351655007.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288759 + ... + 328762.

Almost surely, 2^12351655042 is an apocalyptic number.

12351655042 is a deficient number, since it is larger than the sum of its proper divisors (6566748950).

12351655042 is a wasteful number, since it uses less digits than its factorization.

12351655042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617733.

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 12351655042 in words is "twelve billion, three hundred fifty-one million, six hundred fifty-five thousand, forty-two".