83140911243 has 40 divisors (see below), whose sum is σ = 133786130016. Its totient is φ = 51150528000.

The previous prime is 83140911199. The next prime is 83140911277. The reversal of 83140911243 is 34211904138.

83140911243 is a `hidden beast` number, since 8 + 3 + 1 + 409 + 1 + 1 + 243 = 666.

It is not a de Polignac number, because 83140911243 - 2⁸ = 83140910987 is a prime.

It is a super-2 number, since 2×83140911243² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83140911198 and 83140911207.

It is not an unprimeable number, because it can be changed into a prime (83140912243) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5553418 + ... + 5568368.

Almost surely, 2^83140911243 is an apocalyptic number.

83140911243 is a deficient number, since it is larger than the sum of its proper divisors (50645218773).

83140911243 is a wasteful number, since it uses less digits than its factorization.

83140911243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20257 (or 20248 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 83140911243 in words is "eighty-three billion, one hundred forty million, nine hundred eleven thousand, two hundred forty-three".