1213433102042 has 48 divisors (see below), whose sum is σ = 2123295397992. Its totient is φ = 518576486400.

The previous prime is 1213433102023. The next prime is 1213433102087. The reversal of 1213433102042 is 2402013343121.

It can be written as a sum of positive squares in 4 ways, for example, as 808760274721 + 404672827321 = 899311^2 + 636139^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50970542 + ... + 50994342.

Almost surely, 2^{1213433102042} is an apocalyptic number.

1213433102042 is a deficient number, since it is larger than the sum of its proper divisors (909862295950).

1213433102042 is a wasteful number, since it uses less digits than its factorization.

1213433102042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25263 (or 25256 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1213433102042 its reverse (2402013343121), we get a palindrome (3615446445163).

The spelling of 1213433102042 in words is "one trillion, two hundred thirteen billion, four hundred thirty-three million, one hundred two thousand, forty-two".