101251451621 has 8 divisors (see below), whose sum is σ = 105714000960. Its totient is φ = 96793928352.

The previous prime is 101251451569. The next prime is 101251451627. The reversal of 101251451621 is 126154152101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101251451621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101251451627) 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 7 ways as a sum of consecutive naturals, for example, 1215311 + ... + 1295948.

It is an arithmetic number, because the mean of its divisors is an integer number (13214250120).

Almost surely, 2^101251451621 is an apocalyptic number.

It is an amenable number.

101251451621 is a deficient number, since it is larger than the sum of its proper divisors (4462549339).

101251451621 is a wasteful number, since it uses less digits than its factorization.

101251451621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513035.

The product of its (nonzero) digits is 2400, while the sum is 29.

The spelling of 101251451621 in words is "one hundred one billion, two hundred fifty-one million, four hundred fifty-one thousand, six hundred twenty-one".