120521121124 has 18 divisors (see below), whose sum is σ = 214426243122. Its totient is φ = 59272675200.

The previous prime is 120521121113. The next prime is 120521121139. The reversal of 120521121124 is 421121125021.

It can be written as a sum of positive squares in 3 ways, for example, as 2618164224 + 117902956900 = 51168^2 + 343370^2 .

It is a junction number, because it is equal to n+sod(n) for n = 120521121095 and 120521121104.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4033797 + ... + 4063564.

Almost surely, 2^120521121124 is an apocalyptic number.

It is an amenable number.

120521121124 is a deficient number, since it is larger than the sum of its proper divisors (93905121998).

120521121124 is an equidigital number, since it uses as much as digits as its factorization.

120521121124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8097487 (or 8097424 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

Adding to 120521121124 its reverse (421121125021), we get a palindrome (541642246145).

The spelling of 120521121124 in words is "one hundred twenty billion, five hundred twenty-one million, one hundred twenty-one thousand, one hundred twenty-four".