101131144020 has 72 divisors (see below), whose sum is σ = 311343081504. Its totient is φ = 26565789888.

The previous prime is 101131144013. The next prime is 101131144057. The reversal of 101131144020 is 20441131101.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 101131143984 and 101131144002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4180774 + ... + 4204893.

Almost surely, 2^101131144020 is an apocalyptic number.

101131144020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101131144020 is an abundant number, since it is smaller than the sum of its proper divisors (210211937484).

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

101131144020 is a wasteful number, since it uses less digits than its factorization.

101131144020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8385749 (or 8385744 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 101131144020 its reverse (20441131101), we get a palindrome (121572275121).

The spelling of 101131144020 in words is "one hundred one billion, one hundred thirty-one million, one hundred forty-four thousand, twenty".