2351661031 has 2 divisors, whose sum is σ = 2351661032. Its totient is φ = 2351661030.

The previous prime is 2351660977. The next prime is 2351661047. The reversal of 2351661031 is 1301661532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2351661031 - 2¹¹ = 2351658983 is a prime.

It is a super-2 number, since 2×2351661031² = 11060619209447965922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2351661061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1175830515 + 1175830516.

It is an arithmetic number, because the mean of its divisors is an integer number (1175830516).

Almost surely, 2^2351661031 is an apocalyptic number.

2351661031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2351661031 is an equidigital number, since it uses as much as digits as its factorization.

2351661031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 2351661031 is about 48493.9277745163. The cubic root of 2351661031 is about 1329.8160619616.

The spelling of 2351661031 in words is "two billion, three hundred fifty-one million, six hundred sixty-one thousand, thirty-one".