121010023102321 has 4 divisors (see below), whose sum is σ = 121012468737444. Its totient is φ = 121007577467200.

The previous prime is 121010023102229. The next prime is 121010023102333. The reversal of 121010023102321 is 123201320010121.

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

It can be written as a sum of positive squares in 2 ways, for example, as 71135071773921 + 49874951328400 = 8434161^2 + 7062220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121010023102321 is a prime.

It is a super-3 number, since 3×121010023102321³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121010023102621) 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, 1222743340 + ... + 1222842301.

It is an arithmetic number, because the mean of its divisors is an integer number (30253117184361).

Almost surely, 2^{121010023102321} is an apocalyptic number.

It is an amenable number.

121010023102321 is a deficient number, since it is larger than the sum of its proper divisors (2445635123).

121010023102321 is an equidigital number, since it uses as much as digits as its factorization.

121010023102321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445635122.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121010023102321 its reverse (123201320010121), we get a palindrome (244211343112442).

The spelling of 121010023102321 in words is "one hundred twenty-one trillion, ten billion, twenty-three million, one hundred two thousand, three hundred twenty-one".