20012022311 has 8 divisors (see below), whose sum is σ = 21191716224. Its totient is φ = 18832608000.

The previous prime is 20012022307. The next prime is 20012022319. The reversal of 20012022311 is 11322021002.

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 not a de Polignac number, because 20012022311 - 2² = 20012022307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012022319) 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, 87626 + ... + 218408.

It is an arithmetic number, because the mean of its divisors is an integer number (2648964528).

Almost surely, 2^20012022311 is an apocalyptic number.

20012022311 is a deficient number, since it is larger than the sum of its proper divisors (1179693913).

20012022311 is a wasteful number, since it uses less digits than its factorization.

20012022311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139801.

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

Adding to 20012022311 its reverse (11322021002), we get a palindrome (31334043313).

The spelling of 20012022311 in words is "twenty billion, twelve million, twenty-two thousand, three hundred eleven".