121145520124 has 12 divisors (see below), whose sum is σ = 218843520448. Its totient is φ = 58618800000.

The previous prime is 121145520107. The next prime is 121145520131. The reversal of 121145520124 is 421025541121.

It is a super-3 number, since 3×121145520124³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 121145520092 and 121145520101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488489877 + ... + 488490124.

Almost surely, 2^121145520124 is an apocalyptic number.

It is an amenable number.

121145520124 is a deficient number, since it is larger than the sum of its proper divisors (97698000324).

121145520124 is a wasteful number, since it uses less digits than its factorization.

121145520124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976980036 (or 976980034 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The spelling of 121145520124 in words is "one hundred twenty-one billion, one hundred forty-five million, five hundred twenty thousand, one hundred twenty-four".