121541015419 has 2 divisors, whose sum is σ = 121541015420. Its totient is φ = 121541015418.

The previous prime is 121541015371. The next prime is 121541015429. The reversal of 121541015419 is 914510145121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121541015419 - 2⁷ = 121541015291 is a prime.

It is a super-2 number, since 2×121541015419² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121541015429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60770507709 + 60770507710.

It is an arithmetic number, because the mean of its divisors is an integer number (60770507710).

Almost surely, 2^121541015419 is an apocalyptic number.

121541015419 is a deficient number, since it is larger than the sum of its proper divisors (1).

121541015419 is an equidigital number, since it uses as much as digits as its factorization.

121541015419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 34.

The spelling of 121541015419 in words is "one hundred twenty-one billion, five hundred forty-one million, fifteen thousand, four hundred nineteen".