2123431230000 has 100 divisors (see below), whose sum is σ = 6854719231448. Its totient is φ = 566248320000.

The previous prime is 2123431229989. The next prime is 2123431230049. The reversal of 2123431230000 is 321343212.

It is a tau number, because it is divible by the number of its divisors (100).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35360521 + ... + 35420520.

Almost surely, 2^{2123431230000} is an apocalyptic number.

2123431230000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123431230000 is an abundant number, since it is smaller than the sum of its proper divisors (4731288001448).

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

2123431230000 is an equidigital number, since it uses as much as digits as its factorization.

2123431230000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70781072 (or 70781051 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 2123431230000 its reverse (321343212), we get a palindrome (2123752573212).

The spelling of 2123431230000 in words is "two trillion, one hundred twenty-three billion, four hundred thirty-one million, two hundred thirty thousand".