312113031 has 8 divisors (see below), whose sum is σ = 417968880. Its totient is φ = 207166272.

The previous prime is 312113029. The next prime is 312113071. The reversal of 312113031 is 130311213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 312113031 - 2¹ = 312113029 is a prime.

It is a super-2 number, since 2×312113031² = 194829088240013922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 312113031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312113071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226470 + ... + 227843.

It is an arithmetic number, because the mean of its divisors is an integer number (52246110).

Almost surely, 2^312113031 is an apocalyptic number.

312113031 is a deficient number, since it is larger than the sum of its proper divisors (105855849).

312113031 is a wasteful number, since it uses less digits than its factorization.

312113031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454545.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 312113031 is about 17666.7210030611. The cubic root of 312113031 is about 678.3241829920.

Adding to 312113031 its reverse (130311213), we get a palindrome (442424244).

The spelling of 312113031 in words is "three hundred twelve million, one hundred thirteen thousand, thirty-one".