31042234043 has 4 divisors (see below), whose sum is σ = 31063511880. Its totient is φ = 31020956208.

The previous prime is 31042234021. The next prime is 31042234051. The reversal of 31042234043 is 34043224013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34043224013 = 17 ⋅2002542589.

It is a cyclic number.

It is not a de Polignac number, because 31042234043 - 2⁶ = 31042233979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31042234843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10636730 + ... + 10639647.

It is an arithmetic number, because the mean of its divisors is an integer number (7765877970).

Almost surely, 2^31042234043 is an apocalyptic number.

31042234043 is a deficient number, since it is larger than the sum of its proper divisors (21277837).

31042234043 is a wasteful number, since it uses less digits than its factorization.

31042234043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21277836.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 31042234043 its reverse (34043224013), we get a palindrome (65085458056).

The spelling of 31042234043 in words is "thirty-one billion, forty-two million, two hundred thirty-four thousand, forty-three".