123020203031 has 8 divisors (see below), whose sum is σ = 134222601744. Its totient is φ = 111820928320.

The previous prime is 123020203021. The next prime is 123020203039. The reversal of 123020203031 is 130302020321.

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 123020203031 - 2⁶ = 123020202967 is a prime.

It is a super-3 number, since 3×123020203031³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123020203039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 698276 + ... + 856521.

It is an arithmetic number, because the mean of its divisors is an integer number (16777825218).

Almost surely, 2^123020203031 is an apocalyptic number.

123020203031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123020203031 is a deficient number, since it is larger than the sum of its proper divisors (11202398713).

123020203031 is a wasteful number, since it uses less digits than its factorization.

123020203031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562001.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 123020203031 its reverse (130302020321), we get a palindrome (253322223352).

The spelling of 123020203031 in words is "one hundred twenty-three billion, twenty million, two hundred three thousand, thirty-one".