312103331430 has 64 divisors (see below), whose sum is σ = 836146637568. Its totient is φ = 73901842560.

The previous prime is 312103331429. The next prime is 312103331461. The reversal of 312103331430 is 34133301213.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 312103331430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10983109 + ... + 11011488.

It is an arithmetic number, because the mean of its divisors is an integer number (13064791212).

Almost surely, 2^312103331430 is an apocalyptic number.

312103331430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312103331430 is an abundant number, since it is smaller than the sum of its proper divisors (524043306138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312103331430 is a wasteful number, since it uses less digits than its factorization.

312103331430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21994661.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 312103331430 its reverse (34133301213), we get a palindrome (346236632643).

The spelling of 312103331430 in words is "three hundred twelve billion, one hundred three million, three hundred thirty-one thousand, four hundred thirty".