102240023 has 4 divisors (see below), whose sum is σ = 108254160. Its totient is φ = 96225888.

The previous prime is 102240011. The next prime is 102240053. The reversal of 102240023 is 320042201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320042201 = 3011 ⋅106291.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102240023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102240053) 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, 3007043 + ... + 3007076.

It is an arithmetic number, because the mean of its divisors is an integer number (27063540).

Almost surely, 2^102240023 is an apocalyptic number.

102240023 is a deficient number, since it is larger than the sum of its proper divisors (6014137).

102240023 is an equidigital number, since it uses as much as digits as its factorization.

102240023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6014136.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 102240023 is about 10111.3808651440. The cubic root of 102240023 is about 467.5990780123.

Adding to 102240023 its reverse (320042201), we get a palindrome (422282224).

The spelling of 102240023 in words is "one hundred two million, two hundred forty thousand, twenty-three".