120200000031 has 32 divisors (see below), whose sum is σ = 179439986880. Its totient is φ = 79519108608.

The previous prime is 120200000003. The next prime is 120200000101. The reversal of 120200000031 is 130000002021.

It is a happy number.

It is not a de Polignac number, because 120200000031 - 2⁵ = 120199999999 is a prime.

It is a super-2 number, since 2×120200000031² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 120199999959 and 120200000022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120200000231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15372835 + ... + 15380651.

It is an arithmetic number, because the mean of its divisors is an integer number (5607499590).

Almost surely, 2^120200000031 is an apocalyptic number.

120200000031 is a deficient number, since it is larger than the sum of its proper divisors (59239986849).

120200000031 is a wasteful number, since it uses less digits than its factorization.

120200000031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12120 (or 12114 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 120200000031 its reverse (130000002021), we get a palindrome (250200002052).

The spelling of 120200000031 in words is "one hundred twenty billion, two hundred million, thirty-one", and thus it is an aban number.