121341461551 has 2 divisors, whose sum is σ = 121341461552. Its totient is φ = 121341461550.

The previous prime is 121341461497. The next prime is 121341461573. The reversal of 121341461551 is 155164143121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121341461551 - 2²⁷ = 121207243823 is a prime.

It is a super-2 number, since 2×121341461551² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121341461581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60670730775 + 60670730776.

It is an arithmetic number, because the mean of its divisors is an integer number (60670730776).

Almost surely, 2^121341461551 is an apocalyptic number.

121341461551 is a deficient number, since it is larger than the sum of its proper divisors (1).

121341461551 is an equidigital number, since it uses as much as digits as its factorization.

121341461551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 34.

The spelling of 121341461551 in words is "one hundred twenty-one billion, three hundred forty-one million, four hundred sixty-one thousand, five hundred fifty-one".