20102232311 has 12 divisors (see below), whose sum is σ = 23386602960. Its totient is φ = 17228736000.

The previous prime is 20102232307. The next prime is 20102232421. The reversal of 20102232311 is 11323220102.

It is not a de Polignac number, because 20102232311 - 2² = 20102232307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20102232311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102232511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 771230 + ... + 796868.

It is an arithmetic number, because the mean of its divisors is an integer number (1948883580).

Almost surely, 2^20102232311 is an apocalyptic number.

20102232311 is a deficient number, since it is larger than the sum of its proper divisors (3284370649).

20102232311 is a wasteful number, since it uses less digits than its factorization.

20102232311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41654 (or 41647 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20102232311 its reverse (11323220102), we get a palindrome (31425452413).

The spelling of 20102232311 in words is "twenty billion, one hundred two million, two hundred thirty-two thousand, three hundred eleven".