121424530105 has 16 divisors (see below), whose sum is σ = 149309080704. Its totient is φ = 94741313920.

The previous prime is 121424530091. The next prime is 121424530229. The reversal of 121424530105 is 501035424121.

It is not a de Polignac number, because 121424530105 - 2⁷ = 121424529977 is a prime.

It is a super-2 number, since 2×121424530105² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 592092 + ... + 770338.

It is an arithmetic number, because the mean of its divisors is an integer number (9331817544).

Almost surely, 2^121424530105 is an apocalyptic number.

It is an amenable number.

121424530105 is a deficient number, since it is larger than the sum of its proper divisors (27884550599).

121424530105 is a wasteful number, since it uses less digits than its factorization.

121424530105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181616.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 121424530105 its reverse (501035424121), we get a palindrome (622459954226).

The spelling of 121424530105 in words is "one hundred twenty-one billion, four hundred twenty-four million, five hundred thirty thousand, one hundred five".