20210211315 has 64 divisors (see below), whose sum is σ = 41675013120. Its totient is φ = 9101030400.

The previous prime is 20210211313. The next prime is 20210211323. The reversal of 20210211315 is 51311201202.

It is not a de Polignac number, because 20210211315 - 2¹ = 20210211313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20210211313) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 96286 + ... + 222915.

It is an arithmetic number, because the mean of its divisors is an integer number (651172080).

Almost surely, 2^20210211315 is an apocalyptic number.

20210211315 is an abundant number, since it is smaller than the sum of its proper divisors (21464801805).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20210211315 is a wasteful number, since it uses less digits than its factorization.

20210211315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319289 (or 319283 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 20210211315 its reverse (51311201202), we get a palindrome (71521412517).

The spelling of 20210211315 in words is "twenty billion, two hundred ten million, two hundred eleven thousand, three hundred fifteen".