101244136621 has 8 divisors (see below), whose sum is σ = 105202201088. Its totient is φ = 97329330000.

The previous prime is 101244136607. The next prime is 101244136681. The reversal of 101244136621 is 126631442101.

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

It is a cyclic number.

It is not a de Polignac number, because 101244136621 - 2⁹ = 101244136109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101244136601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10809690 + ... + 10819051.

It is an arithmetic number, because the mean of its divisors is an integer number (13150275136).

Almost surely, 2^101244136621 is an apocalyptic number.

It is an amenable number.

101244136621 is a deficient number, since it is larger than the sum of its proper divisors (3958064467).

101244136621 is a wasteful number, since it uses less digits than its factorization.

101244136621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21628923.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 101244136621 its reverse (126631442101), we get a palindrome (227875578722).

The spelling of 101244136621 in words is "one hundred one billion, two hundred forty-four million, one hundred thirty-six thousand, six hundred twenty-one".