23011251450 has 96 divisors (see below), whose sum is σ = 62414487360. Its totient is φ = 5564275200.

The previous prime is 23011251433. The next prime is 23011251463. The reversal of 23011251450 is 5415211032.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23011251450.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 637486 + ... + 672614.

It is an arithmetic number, because the mean of its divisors is an integer number (650150910).

Almost surely, 2^23011251450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23011251450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31207243680).

23011251450 is an abundant number, since it is smaller than the sum of its proper divisors (39403235910).

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

23011251450 is a wasteful number, since it uses less digits than its factorization.

23011251450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35552 (or 35547 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 23011251450 its reverse (5415211032), we get a palindrome (28426462482).

The spelling of 23011251450 in words is "twenty-three billion, eleven million, two hundred fifty-one thousand, four hundred fifty".