120700661 has 2 divisors, whose sum is σ = 120700662. Its totient is φ = 120700660.

The previous prime is 120700637. The next prime is 120700681. The reversal of 120700661 is 166007021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117831025 + 2869636 = 10855^2 + 1694^2 .

It is a cyclic number.

It is not a de Polignac number, because 120700661 - 2¹⁰ = 120699637 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120700681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60350330 + 60350331.

It is an arithmetic number, because the mean of its divisors is an integer number (60350331).

Almost surely, 2^120700661 is an apocalyptic number.

It is an amenable number.

120700661 is a deficient number, since it is larger than the sum of its proper divisors (1).

120700661 is an equidigital number, since it uses as much as digits as its factorization.

120700661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 120700661 is about 10986.3852563070. The cubic root of 120700661 is about 494.2005406184.

Adding to 120700661 its reverse (166007021), we get a palindrome (286707682).

The spelling of 120700661 in words is "one hundred twenty million, seven hundred thousand, six hundred sixty-one".