101512431020 has 96 divisors (see below), whose sum is σ = 286222519296. Its totient is φ = 29206368000.

The previous prime is 101512430977. The next prime is 101512431023. The reversal of 101512431020 is 20134215101.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 101512430983 and 101512431001.

It is not an unprimeable number, because it can be changed into a prime (101512431023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2515256 + ... + 2555295.

It is an arithmetic number, because the mean of its divisors is an integer number (2981484576).

Almost surely, 2^101512431020 is an apocalyptic number.

101512431020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101512431020 is an abundant number, since it is smaller than the sum of its proper divisors (184710088276).

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

101512431020 is a wasteful number, since it uses less digits than its factorization.

101512431020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5070591 (or 5070589 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 101512431020 its reverse (20134215101), we get a palindrome (121646646121).

The spelling of 101512431020 in words is "one hundred one billion, five hundred twelve million, four hundred thirty-one thousand, twenty".