121003232081 has 2 divisors, whose sum is σ = 121003232082. Its totient is φ = 121003232080.

The previous prime is 121003232027. The next prime is 121003232089. The reversal of 121003232081 is 180232300121.

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., 105625000000 + 15378232081 = 325000^2 + 124009^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121003232081 is a prime.

It is a super-2 number, since 2×121003232081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121003232089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60501616040 + 60501616041.

It is an arithmetic number, because the mean of its divisors is an integer number (60501616041).

Almost surely, 2^121003232081 is an apocalyptic number.

It is an amenable number.

121003232081 is a deficient number, since it is larger than the sum of its proper divisors (1).

121003232081 is an equidigital number, since it uses as much as digits as its factorization.

121003232081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 121003232081 in words is "one hundred twenty-one billion, three million, two hundred thirty-two thousand, eighty-one".