101129423 has 2 divisors, whose sum is σ = 101129424. Its totient is φ = 101129422.

The previous prime is 101129407. The next prime is 101129443. The reversal of 101129423 is 324921101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101129423 - 2⁴ = 101129407 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101129443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50564711 + 50564712.

It is an arithmetic number, because the mean of its divisors is an integer number (50564712).

Almost surely, 2^101129423 is an apocalyptic number.

101129423 is a deficient number, since it is larger than the sum of its proper divisors (1).

101129423 is an equidigital number, since it uses as much as digits as its factorization.

101129423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 101129423 is about 10056.3125945846. The cubic root of 101129423 is about 465.8997847335.

The spelling of 101129423 in words is "one hundred one million, one hundred twenty-nine thousand, four hundred twenty-three".