20031331122 has 48 divisors (see below), whose sum is σ = 47660408640. Its totient is φ = 6029892000.

The previous prime is 20031331109. The next prime is 20031331141. The reversal of 20031331122 is 22113313002.

20031331122 is a `hidden beast` number, since 20 + 0 + 313 + 311 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20031331095 and 20031331104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 305097 + ... + 364892.

It is an arithmetic number, because the mean of its divisors is an integer number (992925180).

Almost surely, 2^20031331122 is an apocalyptic number.

20031331122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20031331122 is an abundant number, since it is smaller than the sum of its proper divisors (27629077518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20031331122 is a wasteful number, since it uses less digits than its factorization.

20031331122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670159 (or 670156 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20031331122 its reverse (22113313002), we get a palindrome (42144644124).

It can be divided in two parts, 20031 and 331122, that added together give a palindrome (351153).

The spelling of 20031331122 in words is "twenty billion, thirty-one million, three hundred thirty-one thousand, one hundred twenty-two".