312220000332131 has 16 divisors (see below), whose sum is σ = 319501882715520. Its totient is φ = 305004948111360.

The previous prime is 312220000332127. The next prime is 312220000332133. The reversal of 312220000332131 is 131233000022213.

It is a cyclic number.

It is not a de Polignac number, because 312220000332131 - 2² = 312220000332127 is a prime.

It is a super-2 number, since 2×312220000332131² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312220000332097 and 312220000332106.

It is not an unprimeable number, because it can be changed into a prime (312220000332133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70983011 + ... + 75253091.

It is an arithmetic number, because the mean of its divisors is an integer number (19968867669720).

Almost surely, 2^{312220000332131} is an apocalyptic number.

312220000332131 is a deficient number, since it is larger than the sum of its proper divisors (7281882383389).

312220000332131 is a wasteful number, since it uses less digits than its factorization.

312220000332131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4277906.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 312220000332131 its reverse (131233000022213), we get a palindrome (443453000354344).

The spelling of 312220000332131 in words is "three hundred twelve trillion, two hundred twenty billion, three hundred thirty-two thousand, one hundred thirty-one".