102340321421 has 32 divisors (see below), whose sum is σ = 118824115200. Its totient is φ = 87441431040.

The previous prime is 102340321411. The next prime is 102340321427. The reversal of 102340321421 is 124123043201.

It is not a de Polignac number, because 102340321421 - 2³⁰ = 101266579597 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 (102340321427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 821585 + ... + 937913.

It is an arithmetic number, because the mean of its divisors is an integer number (3713253600).

Almost surely, 2^102340321421 is an apocalyptic number.

It is an amenable number.

102340321421 is a deficient number, since it is larger than the sum of its proper divisors (16483793779).

102340321421 is a wasteful number, since it uses less digits than its factorization.

102340321421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116469.

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

Adding to 102340321421 its reverse (124123043201), we get a palindrome (226463364622).

The spelling of 102340321421 in words is "one hundred two billion, three hundred forty million, three hundred twenty-one thousand, four hundred twenty-one".