720701131 has 2 divisors, whose sum is σ = 720701132. Its totient is φ = 720701130.

The previous prime is 720701119. The next prime is 720701143. The reversal of 720701131 is 131107027.

It is a balanced prime because it is at equal distance from previous prime (720701119) and next prime (720701143).

It is a cyclic number.

It is not a de Polignac number, because 720701131 - 2⁵ = 720701099 is a prime.

It is a super-2 number, since 2×720701131² = 1038820240449358322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (720701161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360350565 + 360350566.

It is an arithmetic number, because the mean of its divisors is an integer number (360350566).

Almost surely, 2^720701131 is an apocalyptic number.

720701131 is a deficient number, since it is larger than the sum of its proper divisors (1).

720701131 is an equidigital number, since it uses as much as digits as its factorization.

720701131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 720701131 is about 26845.8773557505. The cubic root of 720701131 is about 896.5717856485.

Adding to 720701131 its reverse (131107027), we get a palindrome (851808158).

The spelling of 720701131 in words is "seven hundred twenty million, seven hundred one thousand, one hundred thirty-one".