121405325464 has 8 divisors (see below), whose sum is σ = 227634985260. Its totient is φ = 60702662728.

The previous prime is 121405325413. The next prime is 121405325471. The reversal of 121405325464 is 464523504121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7587832834 + ... + 7587832849.

Almost surely, 2^121405325464 is an apocalyptic number.

It is an amenable number.

121405325464 is a deficient number, since it is larger than the sum of its proper divisors (106229659796).

121405325464 is a wasteful number, since it uses less digits than its factorization.

121405325464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15175665689 (or 15175665685 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 121405325464 its reverse (464523504121), we get a palindrome (585928829585).

The spelling of 121405325464 in words is "one hundred twenty-one billion, four hundred five million, three hundred twenty-five thousand, four hundred sixty-four".