153031521020 has 48 divisors (see below), whose sum is σ = 386605954560. Its totient is φ = 49706478144.

The previous prime is 153031521007. The next prime is 153031521037. The reversal of 153031521020 is 20125130351.

It is a happy number.

It is a congruent 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, 28762664 + ... + 28767983.

It is an arithmetic number, because the mean of its divisors is an integer number (8054290720).

Almost surely, 2^153031521020 is an apocalyptic number.

153031521020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

153031521020 is an abundant number, since it is smaller than the sum of its proper divisors (233574433540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

153031521020 is a wasteful number, since it uses less digits than its factorization.

153031521020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57530682 (or 57530680 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 153031521020 its reverse (20125130351), we get a palindrome (173156651371).

The spelling of 153031521020 in words is "one hundred fifty-three billion, thirty-one million, five hundred twenty-one thousand, twenty".