31530234045 has 16 divisors (see below), whose sum is σ = 50451895872. Its totient is φ = 16814951040.

The previous prime is 31530234011. The next prime is 31530234053. The reversal of 31530234045 is 54043203513.

It is not a de Polignac number, because 31530234045 - 2⁹ = 31530233533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176049 + ... + 306681.

It is an arithmetic number, because the mean of its divisors is an integer number (3153243492).

Almost surely, 2^31530234045 is an apocalyptic number.

It is an amenable number.

31530234045 is a deficient number, since it is larger than the sum of its proper divisors (18921661827).

31530234045 is a wasteful number, since it uses less digits than its factorization.

31530234045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146732.

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 31530234045 its reverse (54043203513), we get a palindrome (85573437558).

The spelling of 31530234045 in words is "thirty-one billion, five hundred thirty million, two hundred thirty-four thousand, forty-five".