312444100102 has 4 divisors (see below), whose sum is σ = 468666150156. Its totient is φ = 156222050050.

The previous prime is 312444100097. The next prime is 312444100103. The reversal of 312444100102 is 201001444213.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312444100103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78111025024 + ... + 78111025027.

It is an arithmetic number, because the mean of its divisors is an integer number (117166537539).

Almost surely, 2^312444100102 is an apocalyptic number.

312444100102 is a deficient number, since it is larger than the sum of its proper divisors (156222050054).

312444100102 is a wasteful number, since it uses less digits than its factorization.

312444100102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156222050053.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 312444100102 its reverse (201001444213), we get a palindrome (513445544315).

The spelling of 312444100102 in words is "three hundred twelve billion, four hundred forty-four million, one hundred thousand, one hundred two".