102112231 has 8 divisors (see below), whose sum is σ = 111770624. Its totient is φ = 92711520.

The previous prime is 102112223. The next prime is 102112237. The reversal of 102112231 is 132211201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102112231 - 2³ = 102112223 is a prime.

It is a super-2 number, since 2×102112231² = 20853815439594722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102112237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63591 + ... + 65176.

It is an arithmetic number, because the mean of its divisors is an integer number (13971328).

Almost surely, 2^102112231 is an apocalyptic number.

102112231 is a deficient number, since it is larger than the sum of its proper divisors (9658393).

102112231 is a wasteful number, since it uses less digits than its factorization.

102112231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128841.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 102112231 is about 10105.0596732528. The cubic root of 102112231 is about 467.4041760764.

Adding to 102112231 its reverse (132211201), we get a palindrome (234323432).

The spelling of 102112231 in words is "one hundred two million, one hundred twelve thousand, two hundred thirty-one".