31020200001123 has 8 divisors (see below), whose sum is σ = 41378304299088. Its totient is φ = 20671114518624.

The previous prime is 31020200001073. The next prime is 31020200001127. The reversal of 31020200001123 is 32110000202013.

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

It is not a de Polignac number, because 31020200001123 - 2⁹ = 31020200000611 is a prime.

It is a super-2 number, since 2×31020200001123² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31020200001127) 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, 2254695840 + ... + 2254709597.

It is an arithmetic number, because the mean of its divisors is an integer number (5172288037386).

Almost surely, 2^{31020200001123} is an apocalyptic number.

31020200001123 is a deficient number, since it is larger than the sum of its proper divisors (10358104297965).

31020200001123 is a wasteful number, since it uses less digits than its factorization.

31020200001123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4509407733.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 31020200001123 its reverse (32110000202013), we get a palindrome (63130200203136).

The spelling of 31020200001123 in words is "thirty-one trillion, twenty billion, two hundred million, one thousand, one hundred twenty-three".