312122420302 has 16 divisors (see below), whose sum is σ = 583709461632. Its totient is φ = 121606137720.

The previous prime is 312122420297. The next prime is 312122420339. The reversal of 312122420302 is 203024221213.

It is a Harshad number since it is a multiple of its sum of digits (22).

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 7 ways as a sum of consecutive naturals, for example, 1013384328 + ... + 1013384635.

It is an arithmetic number, because the mean of its divisors is an integer number (36481841352).

Almost surely, 2^312122420302 is an apocalyptic number.

312122420302 is a deficient number, since it is larger than the sum of its proper divisors (271587041330).

312122420302 is a wasteful number, since it uses less digits than its factorization.

312122420302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026768983.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 312122420302 its reverse (203024221213), we get a palindrome (515146641515).

The spelling of 312122420302 in words is "three hundred twelve billion, one hundred twenty-two million, four hundred twenty thousand, three hundred two".