20123130100031 has 8 divisors (see below), whose sum is σ = 23001931274784. Its totient is φ = 17245346001120.

The previous prime is 20123130100027. The next prime is 20123130100091. The reversal of 20123130100031 is 13000103132102.

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 20123130100031 - 2² = 20123130100027 is a prime.

It is a super-2 number, since 2×20123130100031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20123130099982 and 20123130100009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123130100091) 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, 254226560 + ... + 254305701.

It is an arithmetic number, because the mean of its divisors is an integer number (2875241409348).

Almost surely, 2^{20123130100031} is an apocalyptic number.

20123130100031 is a deficient number, since it is larger than the sum of its proper divisors (2878801174753).

20123130100031 is an equidigital number, since it uses as much as digits as its factorization.

20123130100031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508537921.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20123130100031 its reverse (13000103132102), we get a palindrome (33123233232133).

The spelling of 20123130100031 in words is "twenty trillion, one hundred twenty-three billion, one hundred thirty million, one hundred thousand, thirty-one".