770123131 has 4 divisors (see below), whose sum is σ = 788906664. Its totient is φ = 751339600.

The previous prime is 770123093. The next prime is 770123149. The reversal of 770123131 is 131321077.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131321077 = 29 ⋅4528313.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-770123131 is a prime.

It is a super-2 number, since 2×770123131² = 1186179273802486322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 770123096 and 770123105.

It is not an unprimeable number, because it can be changed into a prime (770126131) 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 3 ways as a sum of consecutive naturals, for example, 9391705 + ... + 9391786.

It is an arithmetic number, because the mean of its divisors is an integer number (197226666).

Almost surely, 2^770123131 is an apocalyptic number.

770123131 is a deficient number, since it is larger than the sum of its proper divisors (18783533).

770123131 is a wasteful number, since it uses less digits than its factorization.

770123131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18783532.

The product of its (nonzero) digits is 882, while the sum is 25.

The square root of 770123131 is about 27751.0924289477. The cubic root of 770123131 is about 916.6144989522.

The spelling of 770123131 in words is "seven hundred seventy million, one hundred twenty-three thousand, one hundred thirty-one".