101131030020 has 24 divisors (see below), whose sum is σ = 283166884224. Its totient is φ = 26968274656.

The previous prime is 101131030009. The next prime is 101131030043. The reversal of 101131030020 is 20030131101.

It is a super-2 number, since 2×101131030020² (a number of 23 digits) contains 22 as substring.

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 = 101131029978 and 101131030005.

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, 842758524 + ... + 842758643.

It is an arithmetic number, because the mean of its divisors is an integer number (11798620176).

Almost surely, 2^101131030020 is an apocalyptic number.

101131030020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101131030020 is an abundant number, since it is smaller than the sum of its proper divisors (182035854204).

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

101131030020 is a wasteful number, since it uses less digits than its factorization.

101131030020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685517179 (or 1685517177 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 101131030020 its reverse (20030131101), we get a palindrome (121161161121).

The spelling of 101131030020 in words is "one hundred one billion, one hundred thirty-one million, thirty thousand, twenty".