102023231 has 4 divisors (see below), whose sum is σ = 103033464. Its totient is φ = 101013000.

The previous prime is 102023221. The next prime is 102023249. The reversal of 102023231 is 132320201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102023231 is a prime.

It is a super-2 number, since 2×102023231² = 20817479327358722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102023221) 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, 504965 + ... + 505166.

It is an arithmetic number, because the mean of its divisors is an integer number (25758366).

Almost surely, 2^102023231 is an apocalyptic number.

102023231 is a deficient number, since it is larger than the sum of its proper divisors (1010233).

102023231 is a wasteful number, since it uses less digits than its factorization.

102023231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010232.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 102023231 is about 10100.6549787625. The cubic root of 102023231 is about 467.2683416686.

Adding to 102023231 its reverse (132320201), we get a palindrome (234343432).

The spelling of 102023231 in words is "one hundred two million, twenty-three thousand, two hundred thirty-one".