109231061957 has 4 divisors (see below), whose sum is σ = 109235591136. Its totient is φ = 109226532780.

The previous prime is 109231061923. The next prime is 109231061983. The reversal of 109231061957 is 759160132901.

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 109231061957 - 2¹⁸ = 109230799813 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 (109231061917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2228219 + ... + 2276712.

It is an arithmetic number, because the mean of its divisors is an integer number (27308897784).

Almost surely, 2^109231061957 is an apocalyptic number.

It is an amenable number.

109231061957 is a deficient number, since it is larger than the sum of its proper divisors (4529179).

109231061957 is an equidigital number, since it uses as much as digits as its factorization.

109231061957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4529178.

The product of its (nonzero) digits is 102060, while the sum is 44.

The spelling of 109231061957 in words is "one hundred nine billion, two hundred thirty-one million, sixty-one thousand, nine hundred fifty-seven".