101500320440 has 16 divisors (see below), whose sum is σ = 228375721080. Its totient is φ = 40600128160.

The previous prime is 101500320437. The next prime is 101500320533. The reversal of 101500320440 is 44023005101.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1268753966 + ... + 1268754045.

Almost surely, 2^101500320440 is an apocalyptic number.

101500320440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101500320440 is an abundant number, since it is smaller than the sum of its proper divisors (126875400640).

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

101500320440 is a wasteful number, since it uses less digits than its factorization.

101500320440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537508022 (or 2537508018 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 101500320440 its reverse (44023005101), we get a palindrome (145523325541).

The spelling of 101500320440 in words is "one hundred one billion, five hundred million, three hundred twenty thousand, four hundred forty".