2031434543240 has 32 divisors (see below), whose sum is σ = 4570799463000. Its totient is φ = 812561063424.

The previous prime is 2031434543239. The next prime is 2031434543263. The reversal of 2031434543240 is 423454341302.

It can be written as a sum of positive squares in 4 ways, for example, as 520270804804 + 1511163738436 = 721298^2 + 1229294^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2031434543240.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2429516 + ... + 3156804.

Almost surely, 2^{2031434543240} is an apocalyptic number.

2031434543240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031434543240 is an abundant number, since it is smaller than the sum of its proper divisors (2539364919760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2031434543240 is a wasteful number, since it uses less digits than its factorization.

2031434543240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797129 (or 797125 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 2031434543240 its reverse (423454341302), we get a palindrome (2454888884542).

The spelling of 2031434543240 in words is "two trillion, thirty-one billion, four hundred thirty-four million, five hundred forty-three thousand, two hundred forty".