31034020043 has 16 divisors (see below), whose sum is σ = 34128331776. Its totient is φ = 28045971360.

The previous prime is 31034020033. The next prime is 31034020049. The reversal of 31034020043 is 34002043013.

It is a cyclic number.

It is not a de Polignac number, because 31034020043 - 2¹⁶ = 31033954507 is a prime.

It is a super-2 number, since 2×31034020043² (a number of 22 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 = 31034019997 and 31034020024.

It is not an unprimeable number, because it can be changed into a prime (31034020049) 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, 32678 + ... + 251268.

It is an arithmetic number, because the mean of its divisors is an integer number (2133020736).

Almost surely, 2^31034020043 is an apocalyptic number.

31034020043 is a deficient number, since it is larger than the sum of its proper divisors (3094311733).

31034020043 is a wasteful number, since it uses less digits than its factorization.

31034020043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218834.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 31034020043 its reverse (34002043013), we get a palindrome (65036063056).

The spelling of 31034020043 in words is "thirty-one billion, thirty-four million, twenty thousand, forty-three".