31230462021 has 8 divisors (see below), whose sum is σ = 45426126624. Its totient is φ = 18927552720.

The previous prime is 31230461993. The next prime is 31230462059. The reversal of 31230462021 is 12026403213.

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

It is not a de Polignac number, because 31230462021 - 2¹¹ = 31230459973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31230461982 and 31230462000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31230462061) 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, 473188786 + ... + 473188851.

It is an arithmetic number, because the mean of its divisors is an integer number (5678265828).

Almost surely, 2^31230462021 is an apocalyptic number.

It is an amenable number.

31230462021 is a deficient number, since it is larger than the sum of its proper divisors (14195664603).

31230462021 is a wasteful number, since it uses less digits than its factorization.

31230462021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946377651.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31230462021 its reverse (12026403213), we get a palindrome (43256865234).

The spelling of 31230462021 in words is "thirty-one billion, two hundred thirty million, four hundred sixty-two thousand, twenty-one".