121413031242 has 16 divisors (see below), whose sum is σ = 242939505312. Its totient is φ = 40452103280.

The previous prime is 121413031219. The next prime is 121413031261. The reversal of 121413031242 is 242130314121.

It is a super-2 number, since 2×121413031242² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4712868 + ... + 4738559.

It is an arithmetic number, because the mean of its divisors is an integer number (15183719082).

Almost surely, 2^121413031242 is an apocalyptic number.

121413031242 is an abundant number, since it is smaller than the sum of its proper divisors (121526474070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121413031242 is a wasteful number, since it uses less digits than its factorization.

121413031242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9453573.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 121413031242 its reverse (242130314121), we get a palindrome (363543345363).

The spelling of 121413031242 in words is "one hundred twenty-one billion, four hundred thirteen million, thirty-one thousand, two hundred forty-two".