312003033231 has 4 divisors (see below), whose sum is σ = 416004044312. Its totient is φ = 208002022152.

The previous prime is 312003033131. The next prime is 312003033269. The reversal of 312003033231 is 132330300213.

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

It is not a de Polignac number, because 312003033231 - 2¹⁰ = 312003032207 is a prime.

It is a super-2 number, since 2×312003033231² (a number of 24 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 = 312003033198 and 312003033207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312003033271) 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, 52000505536 + ... + 52000505541.

It is an arithmetic number, because the mean of its divisors is an integer number (104001011078).

Almost surely, 2^312003033231 is an apocalyptic number.

312003033231 is a deficient number, since it is larger than the sum of its proper divisors (104001011081).

312003033231 is a wasteful number, since it uses less digits than its factorization.

312003033231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104001011080.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 312003033231 its reverse (132330300213), we get a palindrome (444333333444).

The spelling of 312003033231 in words is "three hundred twelve billion, three million, thirty-three thousand, two hundred thirty-one".