23145352154140 has 48 divisors (see below), whose sum is σ = 49937191012800. Its totient is φ = 9004619238912.

The previous prime is 23145352154137. The next prime is 23145352154149. The reversal of 23145352154140 is 4145125354132.

It is a junction number, because it is equal to n+sod(n) for n = 23145352154093 and 23145352154102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23145352154149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3711120 + ... + 7750039.

It is an arithmetic number, because the mean of its divisors is an integer number (1040358146100).

Almost surely, 2^{23145352154140} is an apocalyptic number.

23145352154140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23145352154140 is an abundant number, since it is smaller than the sum of its proper divisors (26791838858660).

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

23145352154140 is a wasteful number, since it uses less digits than its factorization.

23145352154140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11463934 (or 11463932 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 23145352154140 in words is "twenty-three trillion, one hundred forty-five billion, three hundred fifty-two million, one hundred fifty-four thousand, one hundred forty".