121005620524 has 6 divisors (see below), whose sum is σ = 211759835924. Its totient is φ = 60502810260.

The previous prime is 121005620521. The next prime is 121005620531. The reversal of 121005620524 is 425026500121.

It is a junction number, because it is equal to n+sod(n) for n = 121005620492 and 121005620501.

It is not an unprimeable number, because it can be changed into a prime (121005620521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15125702562 + ... + 15125702569.

Almost surely, 2^121005620524 is an apocalyptic number.

It is an amenable number.

121005620524 is a deficient number, since it is larger than the sum of its proper divisors (90754215400).

121005620524 is a wasteful number, since it uses less digits than its factorization.

121005620524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30251405135 (or 30251405133 counting only the distinct ones).

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

The spelling of 121005620524 in words is "one hundred twenty-one billion, five million, six hundred twenty thousand, five hundred twenty-four".