31300002123 has 16 divisors (see below), whose sum is σ = 44948741376. Its totient is φ = 19259333280.

The previous prime is 31300002121. The next prime is 31300002133. The reversal of 31300002123 is 32120000313.

It is not a de Polignac number, because 31300002123 - 2¹ = 31300002121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31300002121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339828 + ... + 421998.

It is an arithmetic number, because the mean of its divisors is an integer number (2809296336).

Almost surely, 2^31300002123 is an apocalyptic number.

31300002123 is a deficient number, since it is larger than the sum of its proper divisors (13648739253).

31300002123 is a wasteful number, since it uses less digits than its factorization.

31300002123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91954.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 31300002123 its reverse (32120000313), we get a palindrome (63420002436).

The spelling of 31300002123 in words is "thirty-one billion, three hundred million, two thousand, one hundred twenty-three".