311451125102 has 24 divisors (see below), whose sum is σ = 509248286904. Its totient is φ = 142014703824.

The previous prime is 311451125053. The next prime is 311451125129. The reversal of 311451125102 is 201521154113.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 690308 + ... + 1048535.

It is an arithmetic number, because the mean of its divisors is an integer number (21218678621).

Almost surely, 2^311451125102 is an apocalyptic number.

311451125102 is a deficient number, since it is larger than the sum of its proper divisors (197797161802).

311451125102 is a wasteful number, since it uses less digits than its factorization.

311451125102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739024 (or 1738941 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 26.

Adding to 311451125102 its reverse (201521154113), we get a palindrome (512972279215).

The spelling of 311451125102 in words is "three hundred eleven billion, four hundred fifty-one million, one hundred twenty-five thousand, one hundred two".