123102213453 has 48 divisors (see below), whose sum is σ = 187818839936. Its totient is φ = 80552283840.

The previous prime is 123102213391. The next prime is 123102213529. The reversal of 123102213453 is 354312201321.

123102213453 is a `hidden beast` number, since 1 + 2 + 310 + 2 + 2 + 1 + 345 + 3 = 666.

It is not a de Polignac number, because 123102213453 - 2¹⁴ = 123102197069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123102253453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7210275 + ... + 7227327.

Almost surely, 2^123102213453 is an apocalyptic number.

It is an amenable number.

123102213453 is a deficient number, since it is larger than the sum of its proper divisors (64716626483).

123102213453 is an equidigital number, since it uses as much as digits as its factorization.

123102213453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17616 (or 17604 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 123102213453 its reverse (354312201321), we get a palindrome (477414414774).

The spelling of 123102213453 in words is "one hundred twenty-three billion, one hundred two million, two hundred thirteen thousand, four hundred fifty-three".