123123011452 has 24 divisors (see below), whose sum is σ = 246274439040. Its totient is φ = 52760915760.

The previous prime is 123123011449. The next prime is 123123011497. The reversal of 123123011452 is 254110321321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2374 + ... + 496237.

It is an arithmetic number, because the mean of its divisors is an integer number (10261434960).

Almost surely, 2^123123011452 is an apocalyptic number.

It is an amenable number.

123123011452 is an abundant number, since it is smaller than the sum of its proper divisors (123151427588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123123011452 is a wasteful number, since it uses less digits than its factorization.

123123011452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507441 (or 507439 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 123123011452 its reverse (254110321321), we get a palindrome (377233332773).

The spelling of 123123011452 in words is "one hundred twenty-three billion, one hundred twenty-three million, eleven thousand, four hundred fifty-two".