210123111122031 has 8 divisors (see below), whose sum is σ = 280168375980544. Its totient is φ = 140079960172440.

The previous prime is 210123111121921. The next prime is 210123111122033. The reversal of 210123111122031 is 130221111321012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 210123111122031 - 2¹⁵ = 210123111089263 is a prime.

It is a super-2 number, since 2×210123111122031² (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 = 210123111121989 and 210123111122007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210123111122033) 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, 528245281 + ... + 528642906.

It is an arithmetic number, because the mean of its divisors is an integer number (35021046997568).

Almost surely, 2^{210123111122031} is an apocalyptic number.

210123111122031 is a deficient number, since it is larger than the sum of its proper divisors (70045264858513).

210123111122031 is a wasteful number, since it uses less digits than its factorization.

210123111122031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056954461.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 210123111122031 its reverse (130221111321012), we get a palindrome (340344222443043).

The spelling of 210123111122031 in words is "two hundred ten trillion, one hundred twenty-three billion, one hundred eleven million, one hundred twenty-two thousand, thirty-one".