102032431421 has 4 divisors (see below), whose sum is σ = 102459345600. Its totient is φ = 101605517244.

The previous prime is 102032431409. The next prime is 102032431439. The reversal of 102032431421 is 124134230201.

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, and also an emirpimes, since its reverse is a distinct semiprime: 124134230201 = 310801 ⋅399401.

It is a cyclic number.

It is not a de Polignac number, because 102032431421 - 2³⁰ = 100958689597 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 (102032431481) 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, 213456731 + ... + 213457208.

It is an arithmetic number, because the mean of its divisors is an integer number (25614836400).

Almost surely, 2^102032431421 is an apocalyptic number.

It is an amenable number.

102032431421 is a deficient number, since it is larger than the sum of its proper divisors (426914179).

102032431421 is an equidigital number, since it uses as much as digits as its factorization.

102032431421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426914178.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 102032431421 its reverse (124134230201), we get a palindrome (226166661622).

The spelling of 102032431421 in words is "one hundred two billion, thirty-two million, four hundred thirty-one thousand, four hundred twenty-one".