9903157478331 has 16 divisors (see below), whose sum is σ = 14968335191040. Its totient is φ = 5773500715680.

The previous prime is 9903157478323. The next prime is 9903157478339. The reversal of 9903157478331 is 1338747513099.

It is an interprime number because it is at equal distance from previous prime (9903157478323) and next prime (9903157478339).

It is not a de Polignac number, because 9903157478331 - 2³ = 9903157478323 is a prime.

It is a super-3 number, since 3×9903157478331³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (9903157478339) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6682291755 + ... + 6682293236.

It is an arithmetic number, because the mean of its divisors is an integer number (935520949440).

Almost surely, 2^{9903157478331} is an apocalyptic number.

9903157478331 is a deficient number, since it is larger than the sum of its proper divisors (5065177712709).

9903157478331 is a wasteful number, since it uses less digits than its factorization.

9903157478331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13364585026.

The product of its (nonzero) digits is 17146080, while the sum is 60.

The spelling of 9903157478331 in words is "nine trillion, nine hundred three billion, one hundred fifty-seven million, four hundred seventy-eight thousand, three hundred thirty-one".