123010021313 has 4 divisors (see below), whose sum is σ = 123593007408. Its totient is φ = 122427035220.

The previous prime is 123010021273. The next prime is 123010021333. The reversal of 123010021313 is 313120010321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 313120010321 = 59 ⋅5307118819.

It is a cyclic number.

It is not a de Polignac number, because 123010021313 - 2⁶ = 123010021249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123010021291 and 123010021300.

It is not an unprimeable number, because it can be changed into a prime (123010021333) 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, 291492731 + ... + 291493152.

It is an arithmetic number, because the mean of its divisors is an integer number (30898251852).

Almost surely, 2^123010021313 is an apocalyptic number.

It is an amenable number.

123010021313 is a deficient number, since it is larger than the sum of its proper divisors (582986095).

123010021313 is an equidigital number, since it uses as much as digits as its factorization.

123010021313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582986094.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 123010021313 its reverse (313120010321), we get a palindrome (436130031634).

The spelling of 123010021313 in words is "one hundred twenty-three billion, ten million, twenty-one thousand, three hundred thirteen".