15345031020 has 48 divisors (see below), whose sum is σ = 46872096768. Its totient is φ = 3720007360.

The previous prime is 15345030991. The next prime is 15345031057. The reversal of 15345031020 is 2013054351.

15345031020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11624364 + ... + 11625683.

It is an arithmetic number, because the mean of its divisors is an integer number (976502016).

Almost surely, 2^15345031020 is an apocalyptic number.

15345031020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15345031020 is an abundant number, since it is smaller than the sum of its proper divisors (31527065748).

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

15345031020 is a wasteful number, since it uses less digits than its factorization.

15345031020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23250070 (or 23250068 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 15345031020 its reverse (2013054351), we get a palindrome (17358085371).

The spelling of 15345031020 in words is "fifteen billion, three hundred forty-five million, thirty-one thousand, twenty".