165130302031 has 2 divisors, whose sum is σ = 165130302032. Its totient is φ = 165130302030.

The previous prime is 165130302023. The next prime is 165130302037. The reversal of 165130302031 is 130203031561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165130302031 - 2³ = 165130302023 is a prime.

It is a super-2 number, since 2×165130302031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 165130301987 and 165130302005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165130302037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82565151015 + 82565151016.

It is an arithmetic number, because the mean of its divisors is an integer number (82565151016).

Almost surely, 2^165130302031 is an apocalyptic number.

165130302031 is a deficient number, since it is larger than the sum of its proper divisors (1).

165130302031 is an equidigital number, since it uses as much as digits as its factorization.

165130302031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 25.

Adding to 165130302031 its reverse (130203031561), we get a palindrome (295333333592).

The spelling of 165130302031 in words is "one hundred sixty-five billion, one hundred thirty million, three hundred two thousand, thirty-one".