31200343023 has 12 divisors (see below), whose sum is σ = 43905193368. Its totient is φ = 19705479120.

The previous prime is 31200342983. The next prime is 31200343063. The reversal of 31200343023 is 32034300213.

It is an interprime number because it is at equal distance from previous prime (31200342983) and next prime (31200343063).

It is not a de Polignac number, because 31200343023 - 2¹⁰ = 31200341999 is a prime.

It is a super-2 number, since 2×31200343023² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31200343063) 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, 14403508 + ... + 14405673.

It is an arithmetic number, because the mean of its divisors is an integer number (3658766114).

Almost surely, 2^31200343023 is an apocalyptic number.

31200343023 is a deficient number, since it is larger than the sum of its proper divisors (12704850345).

31200343023 is a wasteful number, since it uses less digits than its factorization.

31200343023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28809222 (or 28809203 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 31200343023 its reverse (32034300213), we get a palindrome (63234643236).

The spelling of 31200343023 in words is "thirty-one billion, two hundred million, three hundred forty-three thousand, twenty-three".