31200130023 has 16 divisors (see below), whose sum is σ = 42187291776. Its totient is φ = 20507550560.

The previous prime is 31200129997. The next prime is 31200130069. The reversal of 31200130023 is 32003100213.

It is a cyclic number.

It is not a de Polignac number, because 31200130023 - 2⁶ = 31200129959 is a prime.

It is a super-2 number, since 2×31200130023² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31200129984 and 31200130011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31200030023) 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, 5340 + ... + 249857.

It is an arithmetic number, because the mean of its divisors is an integer number (2636705736).

Almost surely, 2^31200130023 is an apocalyptic number.

31200130023 is a deficient number, since it is larger than the sum of its proper divisors (10987161753).

31200130023 is a wasteful number, since it uses less digits than its factorization.

31200130023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255774.

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

Adding to 31200130023 its reverse (32003100213), we get a palindrome (63203230236).

The spelling of 31200130023 in words is "thirty-one billion, two hundred million, one hundred thirty thousand, twenty-three".