20111004331 has 8 divisors (see below), whose sum is σ = 22203607104. Its totient is φ = 18062456520.

The previous prime is 20111004299. The next prime is 20111004371. The reversal of 20111004331 is 13340011102.

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 20111004331 - 2⁵ = 20111004299 is a prime.

It is a super-2 number, since 2×20111004331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20111004371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11012781 + ... + 11014606.

It is an arithmetic number, because the mean of its divisors is an integer number (2775450888).

Almost surely, 2^20111004331 is an apocalyptic number.

20111004331 is a deficient number, since it is larger than the sum of its proper divisors (2092602773).

20111004331 is a wasteful number, since it uses less digits than its factorization.

20111004331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22027481.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20111004331 its reverse (13340011102), we get a palindrome (33451015433).

The spelling of 20111004331 in words is "twenty billion, one hundred eleven million, four thousand, three hundred thirty-one".