20031122134 has 16 divisors (see below), whose sum is σ = 33488564400. Its totient is φ = 8930283264.

The previous prime is 20031122129. The next prime is 20031122141. The reversal of 20031122134 is 43122113002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

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, 15503319 + ... + 15504610.

It is an arithmetic number, because the mean of its divisors is an integer number (2093035275).

Almost surely, 2^20031122134 is an apocalyptic number.

20031122134 is a deficient number, since it is larger than the sum of its proper divisors (13457442266).

20031122134 is a wasteful number, since it uses less digits than its factorization.

20031122134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31007967.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20031122134 its reverse (43122113002), we get a palindrome (63153235136).

The spelling of 20031122134 in words is "twenty billion, thirty-one million, one hundred twenty-two thousand, one hundred thirty-four".