2031431002 has 4 divisors (see below), whose sum is σ = 3047146506. Its totient is φ = 1015715500.

The previous prime is 2031430969. The next prime is 2031431071. The reversal of 2031431002 is 2001341302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2001341302 = 2 ⋅1000670651.

It can be written as a sum of positive squares in only one way, i.e., 1356522561 + 674908441 = 36831^2 + 25979^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507857749 + ... + 507857752.

Almost surely, 2^2031431002 is an apocalyptic number.

2031431002 is a deficient number, since it is larger than the sum of its proper divisors (1015715504).

2031431002 is a wasteful number, since it uses less digits than its factorization.

2031431002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015715503.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2031431002 is about 45071.3989354668. The cubic root of 2031431002 is about 1266.4868708638.

Adding to 2031431002 its reverse (2001341302), we get a palindrome (4032772304).

The spelling of 2031431002 in words is "two billion, thirty-one million, four hundred thirty-one thousand, two".