121357351 has 16 divisors (see below), whose sum is σ = 130291200. Its totient is φ = 112701888.

The previous prime is 121357349. The next prime is 121357363. The reversal of 121357351 is 153753121.

It is a cyclic number.

It is not a de Polignac number, because 121357351 - 2¹ = 121357349 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 (121357321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349560 + ... + 349906.

It is an arithmetic number, because the mean of its divisors is an integer number (8143200).

Almost surely, 2^121357351 is an apocalyptic number.

121357351 is a deficient number, since it is larger than the sum of its proper divisors (8933849).

121357351 is a wasteful number, since it uses less digits than its factorization.

121357351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678.

The product of its digits is 3150, while the sum is 28.

The square root of 121357351 is about 11016.2312521116. The cubic root of 121357351 is about 495.0951774267.

It can be divided in two parts, 1213 and 57351, that added together give a square (58564 = 242²).

The spelling of 121357351 in words is "one hundred twenty-one million, three hundred fifty-seven thousand, three hundred fifty-one".