121003435081 has 2 divisors, whose sum is σ = 121003435082. Its totient is φ = 121003435080.

The previous prime is 121003434991. The next prime is 121003435087. The reversal of 121003435081 is 180534300121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100146298681 + 20857136400 = 316459^2 + 144420^2 .

It is a cyclic number.

It is not a de Polignac number, because 121003435081 - 2³³ = 112413500489 is a prime.

It is a super-2 number, since 2×121003435081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121003435087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60501717540 + 60501717541.

It is an arithmetic number, because the mean of its divisors is an integer number (60501717541).

Almost surely, 2^121003435081 is an apocalyptic number.

It is an amenable number.

121003435081 is a deficient number, since it is larger than the sum of its proper divisors (1).

121003435081 is an equidigital number, since it uses as much as digits as its factorization.

121003435081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 121003435081 in words is "one hundred twenty-one billion, three million, four hundred thirty-five thousand, eighty-one".