312000131220101 has 4 divisors (see below), whose sum is σ = 313868395479072. Its totient is φ = 310131866961132.

The previous prime is 312000131219969. The next prime is 312000131220131. The reversal of 312000131220101 is 101022131000213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312000131220101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312000131220101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312000131220131) 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, 934132129235 + ... + 934132129568.

It is an arithmetic number, because the mean of its divisors is an integer number (78467098869768).

Almost surely, 2^{312000131220101} is an apocalyptic number.

It is an amenable number.

312000131220101 is a deficient number, since it is larger than the sum of its proper divisors (1868264258971).

312000131220101 is a wasteful number, since it uses less digits than its factorization.

312000131220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868264258970.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 312000131220101 its reverse (101022131000213), we get a palindrome (413022262220314).

The spelling of 312000131220101 in words is "three hundred twelve trillion, one hundred thirty-one million, two hundred twenty thousand, one hundred one".