20113032311 has 8 divisors (see below), whose sum is σ = 20243144880. Its totient is φ = 19983117312.

The previous prime is 20113032287. The next prime is 20113032319. The reversal of 20113032311 is 11323031102.

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-20113032311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20113032311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113032319) 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, 157661 + ... + 255113.

It is an arithmetic number, because the mean of its divisors is an integer number (2530393110).

Almost surely, 2^20113032311 is an apocalyptic number.

20113032311 is a deficient number, since it is larger than the sum of its proper divisors (130112569).

20113032311 is a wasteful number, since it uses less digits than its factorization.

20113032311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98785.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20113032311 its reverse (11323031102), we get a palindrome (31436063413).

The spelling of 20113032311 in words is "twenty billion, one hundred thirteen million, thirty-two thousand, three hundred eleven".