312211111034402 has 16 divisors (see below), whose sum is σ = 468419252978880. Its totient is φ = 156071363283792.

The previous prime is 312211111034401. The next prime is 312211111034429. The reversal of 312211111034402 is 204430111112213.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (312211111034401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194348723 + ... + 195948585.

It is an arithmetic number, because the mean of its divisors is an integer number (29276203311180).

Almost surely, 2^{312211111034402} is an apocalyptic number.

312211111034402 is a deficient number, since it is larger than the sum of its proper divisors (156208141944478).

312211111034402 is a wasteful number, since it uses less digits than its factorization.

312211111034402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621177.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 312211111034402 its reverse (204430111112213), we get a palindrome (516641222146615).

The spelling of 312211111034402 in words is "three hundred twelve trillion, two hundred eleven billion, one hundred eleven million, thirty-four thousand, four hundred two".