312020321421302 has 64 divisors (see below), whose sum is σ = 518628013735104. Its totient is φ = 139899241912320.

The previous prime is 312020321421241. The next prime is 312020321421337. The reversal of 312020321421302 is 203124123020213.

It is a super-2 number, since 2×312020321421302² (a number of 30 digits) contains 22 as substring.

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 polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1047317402 + ... + 1047615282.

It is an arithmetic number, because the mean of its divisors is an integer number (8103562714611).

Almost surely, 2^{312020321421302} is an apocalyptic number.

312020321421302 is a deficient number, since it is larger than the sum of its proper divisors (206607692313802).

312020321421302 is a wasteful number, since it uses less digits than its factorization.

312020321421302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306273.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 312020321421302 its reverse (203124123020213), we get a palindrome (515144444441515).

The spelling of 312020321421302 in words is "three hundred twelve trillion, twenty billion, three hundred twenty-one million, four hundred twenty-one thousand, three hundred two".