31102013445 has 8 divisors (see below), whose sum is σ = 49763221536. Its totient is φ = 16587740496.

The previous prime is 31102013407. The next prime is 31102013447. The reversal of 31102013445 is 54431020113.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31102013445 - 2¹⁴ = 31101997061 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31102013447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1036733767 + ... + 1036733796.

It is an arithmetic number, because the mean of its divisors is an integer number (6220402692).

Almost surely, 2^31102013445 is an apocalyptic number.

It is an amenable number.

31102013445 is a deficient number, since it is larger than the sum of its proper divisors (18661208091).

31102013445 is a wasteful number, since it uses less digits than its factorization.

31102013445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073467571.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 31102013445 its reverse (54431020113), we get a palindrome (85533033558).

The spelling of 31102013445 in words is "thirty-one billion, one hundred two million, thirteen thousand, four hundred forty-five".