315320021001031 has 8 divisors (see below), whose sum is σ = 315336989541600. Its totient is φ = 315303052936608.

The previous prime is 315320021001001. The next prime is 315320021001059. The reversal of 315320021001031 is 130100120023513.

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 315320021001031 - 2¹⁹ = 315320020476743 is a prime.

It is a super-2 number, since 2×315320021001031² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 315320021000993 and 315320021001011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315320021001001) 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, 2923989045 + ... + 2924096881.

It is an arithmetic number, because the mean of its divisors is an integer number (39417123692700).

Almost surely, 2^{315320021001031} is an apocalyptic number.

315320021001031 is a deficient number, since it is larger than the sum of its proper divisors (16968540569).

315320021001031 is a wasteful number, since it uses less digits than its factorization.

315320021001031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238073.

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 315320021001031 its reverse (130100120023513), we get a palindrome (445420141024544).

The spelling of 315320021001031 in words is "three hundred fifteen trillion, three hundred twenty billion, twenty-one million, one thousand, thirty-one".