102321203032121 has 4 divisors (see below), whose sum is σ = 102376008177552. Its totient is φ = 102266397886692.

The previous prime is 102321203032109. The next prime is 102321203032129. The reversal of 102321203032121 is 121230302123201.

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.

It is a cyclic number.

It is not a de Polignac number, because 102321203032121 - 2⁴² = 97923156521017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102321203032129) 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, 27402569915 + ... + 27402573648.

It is an arithmetic number, because the mean of its divisors is an integer number (25594002044388).

Almost surely, 2^{102321203032121} is an apocalyptic number.

It is an amenable number.

102321203032121 is a deficient number, since it is larger than the sum of its proper divisors (54805145431).

102321203032121 is an equidigital number, since it uses as much as digits as its factorization.

102321203032121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54805145430.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 102321203032121 its reverse (121230302123201), we get a palindrome (223551505155322).

The spelling of 102321203032121 in words is "one hundred two trillion, three hundred twenty-one billion, two hundred three million, thirty-two thousand, one hundred twenty-one".