123021341031 has 4 divisors (see below), whose sum is σ = 164028454712. Its totient is φ = 82014227352.

The previous prime is 123021341029. The next prime is 123021341063. The reversal of 123021341031 is 130143120321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130143120321 = 3 ⋅43381040107.

It is not a de Polignac number, because 123021341031 - 2¹ = 123021341029 is a prime.

It is a super-2 number, since 2×123021341031² (a number of 23 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 = 123021340989 and 123021341007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123021341071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20503556836 + ... + 20503556841.

It is an arithmetic number, because the mean of its divisors is an integer number (41007113678).

Almost surely, 2^123021341031 is an apocalyptic number.

123021341031 is a deficient number, since it is larger than the sum of its proper divisors (41007113681).

123021341031 is an equidigital number, since it uses as much as digits as its factorization.

123021341031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41007113680.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 123021341031 its reverse (130143120321), we get a palindrome (253164461352).

The spelling of 123021341031 in words is "one hundred twenty-three billion, twenty-one million, three hundred forty-one thousand, thirty-one".