121672293361 has 2 divisors, whose sum is σ = 121672293362. Its totient is φ = 121672293360.

The previous prime is 121672293343. The next prime is 121672293371. The reversal of 121672293361 is 163392276121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68673347136 + 52998946225 = 262056^2 + 230215^2 .

It is a cyclic number.

It is not a de Polignac number, because 121672293361 - 2²³ = 121663904753 is a prime.

It is not a weakly prime, because it can be changed into another prime (121672293341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60836146680 + 60836146681.

It is an arithmetic number, because the mean of its divisors is an integer number (60836146681).

Almost surely, 2^121672293361 is an apocalyptic number.

It is an amenable number.

121672293361 is a deficient number, since it is larger than the sum of its proper divisors (1).

121672293361 is an equidigital number, since it uses as much as digits as its factorization.

121672293361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 43.

The spelling of 121672293361 in words is "one hundred twenty-one billion, six hundred seventy-two million, two hundred ninety-three thousand, three hundred sixty-one".