20230021311 has 8 divisors (see below), whose sum is σ = 26988861744. Its totient is φ = 13478930880.

The previous prime is 20230021309. The next prime is 20230021313. The reversal of 20230021311 is 11312003202.

It is an interprime number because it is at equal distance from previous prime (20230021309) and next prime (20230021313).

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

It is not a de Polignac number, because 20230021311 - 2¹ = 20230021309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20230021313) 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, 1931406 + ... + 1941851.

It is an arithmetic number, because the mean of its divisors is an integer number (3373607718).

Almost surely, 2^20230021311 is an apocalyptic number.

20230021311 is a deficient number, since it is larger than the sum of its proper divisors (6758840433).

20230021311 is a wasteful number, since it uses less digits than its factorization.

20230021311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3875001.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20230021311 its reverse (11312003202), we get a palindrome (31542024513).

The spelling of 20230021311 in words is "twenty billion, two hundred thirty million, twenty-one thousand, three hundred eleven".