1251210113204 has 24 divisors (see below), whose sum is σ = 2212756529088. Its totient is φ = 618997259520.

The previous prime is 1251210113183. The next prime is 1251210113213. The reversal of 1251210113204 is 4023110121521.

It is a self number, because there is not a number n which added to its sum of digits gives 1251210113204.

It is a congruent number.

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, 1115057 + ... + 1935399.

It is an arithmetic number, because the mean of its divisors is an integer number (92198188712).

Almost surely, 2^{1251210113204} is an apocalyptic number.

It is an amenable number.

1251210113204 is a deficient number, since it is larger than the sum of its proper divisors (961546415884).

1251210113204 is a wasteful number, since it uses less digits than its factorization.

1251210113204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824375 (or 824373 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 1251210113204 its reverse (4023110121521), we get a palindrome (5274320234725).

The spelling of 1251210113204 in words is "one trillion, two hundred fifty-one billion, two hundred ten million, one hundred thirteen thousand, two hundred four".