123021103223131 has 16 divisors (see below), whose sum is σ = 128588973685056. Its totient is φ = 117471522364416.

The previous prime is 123021103223107. The next prime is 123021103223143. The reversal of 123021103223131 is 131322301120321.

It is a cyclic number.

It is not a de Polignac number, because 123021103223131 - 2²³ = 123021094834523 is a prime.

It is a super-2 number, since 2×123021103223131² (a number of 29 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 = 123021103223096 and 123021103223105.

It is not an unprimeable number, because it can be changed into a prime (123021103223171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190196931 + ... + 190842643.

It is an arithmetic number, because the mean of its divisors is an integer number (8036810855316).

Almost surely, 2^{123021103223131} is an apocalyptic number.

123021103223131 is a deficient number, since it is larger than the sum of its proper divisors (5567870461925).

123021103223131 is a wasteful number, since it uses less digits than its factorization.

123021103223131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659862.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 123021103223131 its reverse (131322301120321), we get a palindrome (254343404343452).

The spelling of 123021103223131 in words is "one hundred twenty-three trillion, twenty-one billion, one hundred three million, two hundred twenty-three thousand, one hundred thirty-one".