312030320129 has 8 divisors (see below), whose sum is σ = 340401807840. Its totient is φ = 283659681600.

The previous prime is 312030320081. The next prime is 312030320149. The reversal of 312030320129 is 921023030213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312030320129 - 2²⁰ = 312029271553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312030320098 and 312030320107.

It is not an unprimeable number, because it can be changed into a prime (312030320149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 742889 + ... + 1084409.

It is an arithmetic number, because the mean of its divisors is an integer number (42550225980).

Almost surely, 2^312030320129 is an apocalyptic number.

It is an amenable number.

312030320129 is a deficient number, since it is larger than the sum of its proper divisors (28371487711).

312030320129 is a wasteful number, since it uses less digits than its factorization.

312030320129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424591.

The product of its (nonzero) digits is 1944, while the sum is 26.

The spelling of 312030320129 in words is "three hundred twelve billion, thirty million, three hundred twenty thousand, one hundred twenty-nine".