121423402413 has 6 divisors (see below), whose sum is σ = 175389359054. Its totient is φ = 80948934936.

The previous prime is 121423402363. The next prime is 121423402511. The reversal of 121423402413 is 314204324121.

121423402413 is a `hidden beast` number, since 1 + 2 + 14 + 234 + 0 + 2 + 413 = 666.

It can be written as a sum of positive squares in only one way, i.e., 65537024004 + 55886378409 = 256002^2 + 236403^2 .

It is not a de Polignac number, because 121423402413 - 2¹⁶ = 121423336877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121423402613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6745744570 + ... + 6745744587.

Almost surely, 2^121423402413 is an apocalyptic number.

It is an amenable number.

121423402413 is a deficient number, since it is larger than the sum of its proper divisors (53965956641).

121423402413 is a wasteful number, since it uses less digits than its factorization.

121423402413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13491489163 (or 13491489160 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 121423402413 its reverse (314204324121), we get a palindrome (435627726534).

The spelling of 121423402413 in words is "one hundred twenty-one billion, four hundred twenty-three million, four hundred two thousand, four hundred thirteen".