20131448915 has 8 divisors (see below), whose sum is σ = 24206154000. Its totient is φ = 16072882272.

The previous prime is 20131448899. The next prime is 20131448923. The reversal of 20131448915 is 51984413102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20131448915 - 2⁴ = 20131448899 is a prime.

It is a super-3 number, since 3×20131448915³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4031864 + ... + 4036853.

It is an arithmetic number, because the mean of its divisors is an integer number (3025769250).

Almost surely, 2^20131448915 is an apocalyptic number.

20131448915 is a deficient number, since it is larger than the sum of its proper divisors (4074705085).

20131448915 is an equidigital number, since it uses as much as digits as its factorization.

20131448915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8069221.

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 20131448915 in words is "twenty billion, one hundred thirty-one million, four hundred forty-eight thousand, nine hundred fifteen".