31114533643 has 8 divisors (see below), whose sum is σ = 31777714800. Its totient is φ = 30455879808.

The previous prime is 31114533631. The next prime is 31114533689. The reversal of 31114533643 is 34633541113.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31114533643 is a prime.

It is a super-2 number, since 2×31114533643² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31114533599 and 31114533608.

It is not an unprimeable number, because it can be changed into a prime (31114533613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1117938 + ... + 1145431.

It is an arithmetic number, because the mean of its divisors is an integer number (3972214350).

Almost surely, 2^31114533643 is an apocalyptic number.

31114533643 is a deficient number, since it is larger than the sum of its proper divisors (663181157).

31114533643 is a wasteful number, since it uses less digits than its factorization.

31114533643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2263661.

The product of its digits is 38880, while the sum is 34.

The spelling of 31114533643 in words is "thirty-one billion, one hundred fourteen million, five hundred thirty-three thousand, six hundred forty-three".