121455201521353 has 8 divisors (see below), whose sum is σ = 144840985665408. Its totient is φ = 99578177644704.

The previous prime is 121455201521299. The next prime is 121455201521369. The reversal of 121455201521353 is 353125102554121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121455201521353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121455201521383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377190066676 + ... + 377190066997.

It is an arithmetic number, because the mean of its divisors is an integer number (18105123208176).

Almost surely, 2^{121455201521353} is an apocalyptic number.

It is an amenable number.

121455201521353 is a deficient number, since it is larger than the sum of its proper divisors (23385784144055).

121455201521353 is an equidigital number, since it uses as much as digits as its factorization.

121455201521353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754380133703.

The product of its (nonzero) digits is 180000, while the sum is 40.

The spelling of 121455201521353 in words is "one hundred twenty-one trillion, four hundred fifty-five billion, two hundred one million, five hundred twenty-one thousand, three hundred fifty-three".