31023013430 has 16 divisors (see below), whose sum is σ = 55848867984. Its totient is φ = 12407551200.

The previous prime is 31023013403. The next prime is 31023013513. The reversal of 31023013430 is 3431032013.

It is a congruent number.

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, 126521 + ... + 279380.

It is an arithmetic number, because the mean of its divisors is an integer number (3490554249).

Almost surely, 2^31023013430 is an apocalyptic number.

31023013430 is a deficient number, since it is larger than the sum of its proper divisors (24825854554).

31023013430 is a wasteful number, since it uses less digits than its factorization.

31023013430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413551.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31023013430 its reverse (3431032013), we get a palindrome (34454045443).

The spelling of 31023013430 in words is "thirty-one billion, twenty-three million, thirteen thousand, four hundred thirty".