123021310001 has 4 divisors (see below), whose sum is σ = 123055899252. Its totient is φ = 122986720752.

The previous prime is 123021309989. The next prime is 123021310003. The reversal of 123021310001 is 100013120321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 38237847025 + 84783462976 = 195545^2 + 291176^2 .

It is a cyclic number.

It is not a de Polignac number, because 123021310001 - 2²⁶ = 122954201137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123021310003) 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, 17289290 + ... + 17296403.

It is an arithmetic number, because the mean of its divisors is an integer number (30763974813).

Almost surely, 2^123021310001 is an apocalyptic number.

It is an amenable number.

123021310001 is a deficient number, since it is larger than the sum of its proper divisors (34589251).

123021310001 is an equidigital number, since it uses as much as digits as its factorization.

123021310001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34589250.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 123021310001 its reverse (100013120321), we get a palindrome (223034430322).

The spelling of 123021310001 in words is "one hundred twenty-three billion, twenty-one million, three hundred ten thousand, one".