101503980 has 72 divisors (see below), whose sum is σ = 308725872. Its totient is φ = 26994816.

The previous prime is 101503979. The next prime is 101503981. The reversal of 101503980 is 89305101.

It is an interprime number because it is at equal distance from previous prime (101503979) and next prime (101503981).

It is not an unprimeable number, because it can be changed into a prime (101503981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115302 + ... + 116178.

Almost surely, 2^101503980 is an apocalyptic number.

101503980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101503980 is an abundant number, since it is smaller than the sum of its proper divisors (207221892).

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

101503980 is a wasteful number, since it uses less digits than its factorization.

101503980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535 (or 1530 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 101503980 is about 10074.9183619521. The cubic root of 101503980 is about 466.4742664920.

The spelling of 101503980 in words is "one hundred one million, five hundred three thousand, nine hundred eighty".