123023211020203 has 4 divisors (see below), whose sum is σ = 132486534944848. Its totient is φ = 113559887095560.

The previous prime is 123023211020191. The next prime is 123023211020239. The reversal of 123023211020203 is 302020112320321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123023211020203 - 2⁹ = 123023211019691 is a prime.

It is a super-2 number, since 2×123023211020203² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123023211020603) 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, 4731661962303 + ... + 4731661962328.

It is an arithmetic number, because the mean of its divisors is an integer number (33121633736212).

Almost surely, 2^{123023211020203} is an apocalyptic number.

123023211020203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123023211020203 is a deficient number, since it is larger than the sum of its proper divisors (9463323924645).

123023211020203 is an equidigital number, since it uses as much as digits as its factorization.

123023211020203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9463323924644.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 123023211020203 its reverse (302020112320321), we get a palindrome (425043323340524).

The spelling of 123023211020203 in words is "one hundred twenty-three trillion, twenty-three billion, two hundred eleven million, twenty thousand, two hundred three".