121421301139 has 2 divisors, whose sum is σ = 121421301140. Its totient is φ = 121421301138.

The previous prime is 121421301107. The next prime is 121421301149. The reversal of 121421301139 is 931103124121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121421301139 - 2⁵ = 121421301107 is a prime.

It is a super-3 number, since 3×121421301139³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (121421301149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60710650569 + 60710650570.

It is an arithmetic number, because the mean of its divisors is an integer number (60710650570).

Almost surely, 2^121421301139 is an apocalyptic number.

121421301139 is a deficient number, since it is larger than the sum of its proper divisors (1).

121421301139 is an equidigital number, since it uses as much as digits as its factorization.

121421301139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 121421301139 in words is "one hundred twenty-one billion, four hundred twenty-one million, three hundred one thousand, one hundred thirty-nine".