121232453201 has 12 divisors (see below), whose sum is σ = 123046279488. Its totient is φ = 119444933664.

The previous prime is 121232453197. The next prime is 121232453203. The reversal of 121232453201 is 102354232121.

It is not a de Polignac number, because 121232453201 - 2² = 121232453197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121232453203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5226836 + ... + 5249978.

It is an arithmetic number, because the mean of its divisors is an integer number (10253856624).

Almost surely, 2^121232453201 is an apocalyptic number.

It is an amenable number.

121232453201 is a deficient number, since it is larger than the sum of its proper divisors (1813826287).

121232453201 is an frugal number, since it uses more digits than its factorization.

121232453201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24272 (or 24199 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 121232453201 its reverse (102354232121), we get a palindrome (223586685322).

The spelling of 121232453201 in words is "one hundred twenty-one billion, two hundred thirty-two million, four hundred fifty-three thousand, two hundred one".