102011129 has 4 divisors (see below), whose sum is σ = 111284880. Its totient is φ = 92737380.

The previous prime is 102011113. The next prime is 102011191. The reversal of 102011129 is 921110201.

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 102011129 - 2⁴ = 102011113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102011729) 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, 4636859 + ... + 4636880.

It is an arithmetic number, because the mean of its divisors is an integer number (27821220).

Almost surely, 2^102011129 is an apocalyptic number.

It is an amenable number.

102011129 is a deficient number, since it is larger than the sum of its proper divisors (9273751).

102011129 is an equidigital number, since it uses as much as digits as its factorization.

102011129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9273750.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 102011129 is about 10100.0558909345. The cubic root of 102011129 is about 467.2498651412.

The spelling of 102011129 in words is "one hundred two million, eleven thousand, one hundred twenty-nine".