31203140043 has 16 divisors (see below), whose sum is σ = 41768035200. Its totient is φ = 20720226240.

The previous prime is 31203140027. The next prime is 31203140053. The reversal of 31203140043 is 34004130213.

It is not a de Polignac number, because 31203140043 - 2⁴ = 31203140027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31203140053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2978148 + ... + 2988606.

It is an arithmetic number, because the mean of its divisors is an integer number (2610502200).

Almost surely, 2^31203140043 is an apocalyptic number.

31203140043 is a deficient number, since it is larger than the sum of its proper divisors (10564895157).

31203140043 is a wasteful number, since it uses less digits than its factorization.

31203140043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14282.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31203140043 its reverse (34004130213), we get a palindrome (65207270256).

The spelling of 31203140043 in words is "thirty-one billion, two hundred three million, one hundred forty thousand, forty-three".