130321666123031 has 4 divisors (see below), whose sum is σ = 133094467529952. Its totient is φ = 127548864716112.

The previous prime is 130321666123027. The next prime is 130321666123037.

130321666123031 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130321666123031 - 2² = 130321666123027 is a prime.

It is a super-2 number, since 2×130321666123031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130321666123037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1386400703390 + ... + 1386400703483.

It is an arithmetic number, because the mean of its divisors is an integer number (33273616882488).

Almost surely, 2^{130321666123031} is an apocalyptic number.

130321666123031 is a deficient number, since it is larger than the sum of its proper divisors (2772801406921).

130321666123031 is an equidigital number, since it uses as much as digits as its factorization.

130321666123031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2772801406920.

The product of its (nonzero) digits is 69984, while the sum is 38.

The spelling of 130321666123031 in words is "one hundred thirty trillion, three hundred twenty-one billion, six hundred sixty-six million, one hundred twenty-three thousand, thirty-one".