1200124120402 has 16 divisors (see below), whose sum is σ = 1817985043800. Its totient is φ = 594154515328.

The previous prime is 1200124120397. The next prime is 1200124120441. The reversal of 1200124120402 is 2040214210021.

It can be written as a sum of positive squares in 4 ways, for example, as 805666012921 + 394458107481 = 897589^2 + 628059^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1200124120402.

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, 6257683 + ... + 6446614.

Almost surely, 2^{1200124120402} is an apocalyptic number.

1200124120402 is a deficient number, since it is larger than the sum of its proper divisors (617860923398).

1200124120402 is a wasteful number, since it uses less digits than its factorization.

1200124120402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12704765.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1200124120402 its reverse (2040214210021), we get a palindrome (3240338330423).

The spelling of 1200124120402 in words is "one trillion, two hundred billion, one hundred twenty-four million, one hundred twenty thousand, four hundred two".