20102031120 has 40 divisors (see below), whose sum is σ = 62316297216. Its totient is φ = 5360541568.

The previous prime is 20102031109. The next prime is 20102031139. The reversal of 20102031120 is 2113020102.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20102031096 and 20102031105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41878992 + ... + 41879471.

Almost surely, 2^20102031120 is an apocalyptic number.

20102031120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102031120 is an abundant number, since it is smaller than the sum of its proper divisors (42214266096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20102031120 is a wasteful number, since it uses less digits than its factorization.

20102031120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83758479 (or 83758473 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20102031120 its reverse (2113020102), we get a palindrome (22215051222).

The spelling of 20102031120 in words is "twenty billion, one hundred two million, thirty-one thousand, one hundred twenty".