121245455039 has 2 divisors, whose sum is σ = 121245455040. Its totient is φ = 121245455038.

The previous prime is 121245455027. The next prime is 121245455087. The reversal of 121245455039 is 930554542121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121245455039 - 2⁸ = 121245454783 is a prime.

It is a super-2 number, since 2×121245455039² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121245454987 and 121245455005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121245455099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60622727519 + 60622727520.

It is an arithmetic number, because the mean of its divisors is an integer number (60622727520).

Almost surely, 2^121245455039 is an apocalyptic number.

121245455039 is a deficient number, since it is larger than the sum of its proper divisors (1).

121245455039 is an equidigital number, since it uses as much as digits as its factorization.

121245455039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 121245455039 in words is "one hundred twenty-one billion, two hundred forty-five million, four hundred fifty-five thousand, thirty-nine".