121550454131 has 8 divisors (see below), whose sum is σ = 122032881600. Its totient is φ = 121068276480.

The previous prime is 121550454127. The next prime is 121550454163. The reversal of 121550454131 is 131454055121.

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

It is a cyclic number.

It is not a de Polignac number, because 121550454131 - 2² = 121550454127 is a prime.

It is a super-2 number, since 2×121550454131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121550459131) 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, 944675 + ... + 1065603.

It is an arithmetic number, because the mean of its divisors is an integer number (15254110200).

Almost surely, 2^121550454131 is an apocalyptic number.

121550454131 is a deficient number, since it is larger than the sum of its proper divisors (482427469).

121550454131 is a wasteful number, since it uses less digits than its factorization.

121550454131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124909.

The product of its (nonzero) digits is 12000, while the sum is 32.

The spelling of 121550454131 in words is "one hundred twenty-one billion, five hundred fifty million, four hundred fifty-four thousand, one hundred thirty-one".