15323117020 has 12 divisors (see below), whose sum is σ = 32178545784. Its totient is φ = 6129246800.

The previous prime is 15323116997. The next prime is 15323117023. The reversal of 15323117020 is 2071132351.

It is a happy number.

15323117020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15323117020² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15323117023) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 383077906 + ... + 383077945.

It is an arithmetic number, because the mean of its divisors is an integer number (2681545482).

Almost surely, 2^15323117020 is an apocalyptic number.

15323117020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15323117020 is an abundant number, since it is smaller than the sum of its proper divisors (16855428764).

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

15323117020 is a wasteful number, since it uses less digits than its factorization.

15323117020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766155860 (or 766155858 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

Adding to 15323117020 its reverse (2071132351), we get a palindrome (17394249371).

The spelling of 15323117020 in words is "fifteen billion, three hundred twenty-three million, one hundred seventeen thousand, twenty".