783423131 has 2 divisors, whose sum is σ = 783423132. Its totient is φ = 783423130.

The previous prime is 783423101. The next prime is 783423167. The reversal of 783423131 is 131324387.

It is a weak prime.

It is an emirp because it is prime and its reverse (131324387) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-783423131 is a prime.

It is a super-2 number, since 2×783423131² = 1227503604371686322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (783423101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391711565 + 391711566.

It is an arithmetic number, because the mean of its divisors is an integer number (391711566).

Almost surely, 2^783423131 is an apocalyptic number.

783423131 is a deficient number, since it is larger than the sum of its proper divisors (1).

783423131 is an equidigital number, since it uses as much as digits as its factorization.

783423131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 32.

The square root of 783423131 is about 27989.6968722421. The cubic root of 783423131 is about 921.8610449459.

The spelling of 783423131 in words is "seven hundred eighty-three million, four hundred twenty-three thousand, one hundred thirty-one".