43172492101 has 2 divisors, whose sum is σ = 43172492102. Its totient is φ = 43172492100.

The previous prime is 43172492089. The next prime is 43172492131. The reversal of 43172492101 is 10129427134.

43172492101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42365988900 + 806503201 = 205830^2 + 28399^2 .

It is a cyclic number.

It is not a de Polignac number, because 43172492101 - 2²⁵ = 43138937669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43172492131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21586246050 + 21586246051.

It is an arithmetic number, because the mean of its divisors is an integer number (21586246051).

Almost surely, 2^43172492101 is an apocalyptic number.

It is an amenable number.

43172492101 is a deficient number, since it is larger than the sum of its proper divisors (1).

43172492101 is an equidigital number, since it uses as much as digits as its factorization.

43172492101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 43172492101 in words is "forty-three billion, one hundred seventy-two million, four hundred ninety-two thousand, one hundred one".