2031312442 has 8 divisors (see below), whose sum is σ = 3047696532. Its totient is φ = 1015413600.

The previous prime is 2031312431. The next prime is 2031312443. The reversal of 2031312442 is 2442131302.

It can be written as a sum of positive squares in 2 ways, for example, as 1424232121 + 607080321 = 37739^2 + 24639^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2031312443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110659 + ... + 127702.

Almost surely, 2^2031312442 is an apocalyptic number.

2031312442 is a deficient number, since it is larger than the sum of its proper divisors (1016384090).

2031312442 is a wasteful number, since it uses less digits than its factorization.

2031312442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242624.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2031312442 is about 45070.0836697692. The cubic root of 2031312442 is about 1266.4622318114.

Adding to 2031312442 its reverse (2442131302), we get a palindrome (4473443744).

The spelling of 2031312442 in words is "two billion, thirty-one million, three hundred twelve thousand, four hundred forty-two".