102240033431 has 4 divisors (see below), whose sum is σ = 102506979072. Its totient is φ = 101973087792.

The previous prime is 102240033341. The next prime is 102240033443. The reversal of 102240033431 is 134330042201.

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

It is a cyclic number.

It is not a de Polignac number, because 102240033431 - 2¹⁸ = 102239771287 is a prime.

It is a super-2 number, since 2×102240033431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102240033397 and 102240033406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102240038431) 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, 133472246 + ... + 133473011.

It is an arithmetic number, because the mean of its divisors is an integer number (25626744768).

Almost surely, 2^102240033431 is an apocalyptic number.

102240033431 is a deficient number, since it is larger than the sum of its proper divisors (266945641).

102240033431 is an equidigital number, since it uses as much as digits as its factorization.

102240033431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266945640.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 102240033431 its reverse (134330042201), we get a palindrome (236570075632).

The spelling of 102240033431 in words is "one hundred two billion, two hundred forty million, thirty-three thousand, four hundred thirty-one".