109621294204137 has 4 divisors (see below), whose sum is σ = 146161725605520. Its totient is φ = 73080862802756.

The previous prime is 109621294204127. The next prime is 109621294204153. The reversal of 109621294204137 is 731402492126901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 109621294204137 - 2¹⁸ = 109621293941993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109621294204137.

It is not an unprimeable number, because it can be changed into a prime (109621294204127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18270215700687 + ... + 18270215700692.

It is an arithmetic number, because the mean of its divisors is an integer number (36540431401380).

Almost surely, 2^{109621294204137} is an apocalyptic number.

It is an amenable number.

109621294204137 is a deficient number, since it is larger than the sum of its proper divisors (36540431401383).

109621294204137 is an equidigital number, since it uses as much as digits as its factorization.

109621294204137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36540431401382.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 109621294204137 in words is "one hundred nine trillion, six hundred twenty-one billion, two hundred ninety-four million, two hundred four thousand, one hundred thirty-seven".