31020043150 has 24 divisors (see below), whose sum is σ = 60733981080. Its totient is φ = 11754963360.

The previous prime is 31020043147. The next prime is 31020043151. The reversal of 31020043150 is 5134002013.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31020043151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16325389 + ... + 16327288.

It is an arithmetic number, because the mean of its divisors is an integer number (2530582545).

Almost surely, 2^31020043150 is an apocalyptic number.

31020043150 is a deficient number, since it is larger than the sum of its proper divisors (29713937930).

31020043150 is a wasteful number, since it uses less digits than its factorization.

31020043150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32652708 (or 32652703 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 31020043150 its reverse (5134002013), we get a palindrome (36154045163).

The spelling of 31020043150 in words is "thirty-one billion, twenty million, forty-three thousand, one hundred fifty".