20131094 has 16 divisors (see below), whose sum is σ = 32060448. Its totient is φ = 9447552.

The previous prime is 20131093. The next prime is 20131103. The reversal of 20131094 is 49013102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131091) 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, 18407 + ... + 19469.

It is an arithmetic number, because the mean of its divisors is an integer number (2003778).

Almost surely, 2^20131094 is an apocalyptic number.

20131094 is a deficient number, since it is larger than the sum of its proper divisors (11929354).

20131094 is a wasteful number, since it uses less digits than its factorization.

20131094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 20131094 is about 4486.7687705073. The cubic root of 20131094 is about 272.0335436573.

Adding to 20131094 its reverse (49013102), we get a palindrome (69144196).

The spelling of 20131094 in words is "twenty million, one hundred thirty-one thousand, ninety-four".