23156430000 has 400 divisors, whose sum is σ = 83338523136. Its totient is φ = 5490560000.

The previous prime is 23156429999. The next prime is 23156430007. The reversal of 23156430000 is 3465132.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (400).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (23156430007) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 15509254 + ... + 15510746.

Almost surely, 2^23156430000 is an apocalyptic number.

23156430000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23156430000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41669261568).

23156430000 is an abundant number, since it is smaller than the sum of its proper divisors (60182093136).

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

23156430000 is a wasteful number, since it uses less digits than its factorization.

23156430000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582 (or 1561 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 23156430000 its reverse (3465132), we get a palindrome (23159895132).

The spelling of 23156430000 in words is "twenty-three billion, one hundred fifty-six million, four hundred thirty thousand".