20123003432131 has 8 divisors (see below), whose sum is σ = 21442421044800. Its totient is φ = 18818664878208.

The previous prime is 20123003432107. The next prime is 20123003432137. The reversal of 20123003432131 is 13123430032102.

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-20123003432131 is a prime.

It is a super-2 number, since 2×20123003432131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20123003432096 and 20123003432105.

It is not an unprimeable number, because it can be changed into a prime (20123003432137) 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, 3769761931 + ... + 3769767268.

It is an arithmetic number, because the mean of its divisors is an integer number (2680302630600).

Almost surely, 2^{20123003432131} is an apocalyptic number.

20123003432131 is a deficient number, since it is larger than the sum of its proper divisors (1319417612669).

20123003432131 is a wasteful number, since it uses less digits than its factorization.

20123003432131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7539529373.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 20123003432131 its reverse (13123430032102), we get a palindrome (33246433464233).

The spelling of 20123003432131 in words is "twenty trillion, one hundred twenty-three billion, three million, four hundred thirty-two thousand, one hundred thirty-one".