101501818812 has 18 divisors (see below), whose sum is σ = 256574042088. Its totient is φ = 33833939592.

The previous prime is 101501818807. The next prime is 101501818841. The reversal of 101501818812 is 218818105101.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2819494967 = 101501818812 / (1 + 0 + 1 + 5 + 0 + 1 + 8 + 1 + 8 + 8 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1409747448 + ... + 1409747519.

Almost surely, 2^101501818812 is an apocalyptic number.

101501818812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101501818812 is an abundant number, since it is smaller than the sum of its proper divisors (155072223276).

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

101501818812 is a wasteful number, since it uses less digits than its factorization.

101501818812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2819494977 (or 2819494972 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 36.

The spelling of 101501818812 in words is "one hundred one billion, five hundred one million, eight hundred eighteen thousand, eight hundred twelve".