20210212031 has 8 divisors (see below), whose sum is σ = 20241439680. Its totient is φ = 20179006848.

The previous prime is 20210212019. The next prime is 20210212093. The reversal of 20210212031 is 13021201202.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20210212031 is a prime.

It is a super-2 number, since 2×20210212031² (a number of 21 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 = 20210211997 and 20210212015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210212931) 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, 2738915 + ... + 2746283.

It is an arithmetic number, because the mean of its divisors is an integer number (2530179960).

Almost surely, 2^20210212031 is an apocalyptic number.

20210212031 is a deficient number, since it is larger than the sum of its proper divisors (31227649).

20210212031 is an equidigital number, since it uses as much as digits as its factorization.

20210212031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11233.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20210212031 its reverse (13021201202), we get a palindrome (33231413233).

The spelling of 20210212031 in words is "twenty billion, two hundred ten million, two hundred twelve thousand, thirty-one".