31457160317143 has 16 divisors (see below), whose sum is σ = 34680961607040. Its totient is φ = 28294432468000.

The previous prime is 31457160317113. The next prime is 31457160317147. The reversal of 31457160317143 is 34171306175413.

It is a cyclic number.

It is not a de Polignac number, because 31457160317143 - 2²⁹ = 31456623446231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31457160317093 and 31457160317102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31457160317147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8335513 + ... + 11506306.

It is an arithmetic number, because the mean of its divisors is an integer number (2167560100440).

Almost surely, 2^{31457160317143} is an apocalyptic number.

31457160317143 is a deficient number, since it is larger than the sum of its proper divisors (3223801289897).

31457160317143 is a wasteful number, since it uses less digits than its factorization.

31457160317143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19843358.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 31457160317143 in words is "thirty-one trillion, four hundred fifty-seven billion, one hundred sixty million, three hundred seventeen thousand, one hundred forty-three".