312132012222311 has 4 divisors (see below), whose sum is σ = 313234952195112. Its totient is φ = 311029072249512.

The previous prime is 312132012222307. The next prime is 312132012222313. The reversal of 312132012222311 is 113222210231213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 312132012222311 - 2² = 312132012222307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312132012222313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551469985976 + ... + 551469986541.

It is an arithmetic number, because the mean of its divisors is an integer number (78308738048778).

Almost surely, 2^{312132012222311} is an apocalyptic number.

312132012222311 is a deficient number, since it is larger than the sum of its proper divisors (1102939972801).

312132012222311 is a wasteful number, since it uses less digits than its factorization.

312132012222311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102939972800.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 312132012222311 its reverse (113222210231213), we get a palindrome (425354222453524).

The spelling of 312132012222311 in words is "three hundred twelve trillion, one hundred thirty-two billion, twelve million, two hundred twenty-two thousand, three hundred eleven".