312213233301031 has 16 divisors (see below), whose sum is σ = 317128611468544. Its totient is φ = 307305387696384.

The previous prime is 312213233301007. The next prime is 312213233301049. The reversal of 312213233301031 is 130103332312213.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 312213233301031 - 2¹⁵ = 312213233268263 is a prime.

It is a super-2 number, since 2×312213233301031² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312213233304031) 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, 2992015000 + ... + 2992119346.

It is an arithmetic number, because the mean of its divisors is an integer number (19820538216784).

Almost surely, 2^{312213233301031} is an apocalyptic number.

312213233301031 is a deficient number, since it is larger than the sum of its proper divisors (4915378167513).

312213233301031 is a wasteful number, since it uses less digits than its factorization.

312213233301031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139990.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 312213233301031 its reverse (130103332312213), we get a palindrome (442316565613244).

The spelling of 312213233301031 in words is "three hundred twelve trillion, two hundred thirteen billion, two hundred thirty-three million, three hundred one thousand, thirty-one".