7131018451 has 2 divisors, whose sum is σ = 7131018452. Its totient is φ = 7131018450.

The previous prime is 7131018413. The next prime is 7131018457. The reversal of 7131018451 is 1548101317.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7131018451 - 2²⁵ = 7097464019 is a prime.

It is not a weakly prime, because it can be changed into another prime (7131018457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3565509225 + 3565509226.

It is an arithmetic number, because the mean of its divisors is an integer number (3565509226).

Almost surely, 2^7131018451 is an apocalyptic number.

7131018451 is a deficient number, since it is larger than the sum of its proper divisors (1).

7131018451 is an equidigital number, since it uses as much as digits as its factorization.

7131018451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 31.

The square root of 7131018451 is about 84445.3577824145. The cubic root of 7131018451 is about 1924.7922146894.

Adding to 7131018451 its reverse (1548101317), we get a palindrome (8679119768).

The spelling of 7131018451 in words is "seven billion, one hundred thirty-one million, eighteen thousand, four hundred fifty-one".