20123243252 has 24 divisors (see below), whose sum is σ = 40661404224. Its totient is φ = 8535336192.

The previous prime is 20123243233. The next prime is 20123243263. The reversal of 20123243252 is 25234232102.

It is a super-3 number, since 3×20123243252³ (a number of 32 digits) contains 333 as substring.

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, 3701858 + ... + 3707289.

It is an arithmetic number, because the mean of its divisors is an integer number (1694225176).

Almost surely, 2^20123243252 is an apocalyptic number.

It is an amenable number.

20123243252 is an abundant number, since it is smaller than the sum of its proper divisors (20538160972).

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

20123243252 is a wasteful number, since it uses less digits than its factorization.

20123243252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7409255 (or 7409253 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 20123243252 its reverse (25234232102), we get a palindrome (45357475354).

The spelling of 20123243252 in words is "twenty billion, one hundred twenty-three million, two hundred forty-three thousand, two hundred fifty-two".