109431051901 has 2 divisors, whose sum is σ = 109431051902. Its totient is φ = 109431051900.

The previous prime is 109431051841. The next prime is 109431051941. The reversal of 109431051901 is 109150134901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90179489401 + 19251562500 = 300299^2 + 138750^2 .

It is an emirp because it is prime and its reverse (109150134901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109431051901 - 2³¹ = 107283568253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109431051941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54715525950 + 54715525951.

It is an arithmetic number, because the mean of its divisors is an integer number (54715525951).

Almost surely, 2^109431051901 is an apocalyptic number.

It is an amenable number.

109431051901 is a deficient number, since it is larger than the sum of its proper divisors (1).

109431051901 is an equidigital number, since it uses as much as digits as its factorization.

109431051901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 34.

The spelling of 109431051901 in words is "one hundred nine billion, four hundred thirty-one million, fifty-one thousand, nine hundred one".