2154123102000 has 320 divisors, whose sum is σ = 7269936979968. Its totient is φ = 548069760000.

The previous prime is 2154123101983. The next prime is 2154123102041. The reversal of 2154123102000 is 2013214512.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13124442 + ... + 13287558.

Almost surely, 2^{2154123102000} is an apocalyptic number.

2154123102000 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 2154123102000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3634968489984).

2154123102000 is an abundant number, since it is smaller than the sum of its proper divisors (5115813877968).

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

2154123102000 is a wasteful number, since it uses less digits than its factorization.

2154123102000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163245 (or 163229 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 2154123102000 its reverse (2013214512), we get a palindrome (2156136316512).

The spelling of 2154123102000 in words is "two trillion, one hundred fifty-four billion, one hundred twenty-three million, one hundred two thousand".