1231548001200 has 180 divisors, whose sum is σ = 4662342325368. Its totient is φ = 298557081600.

The previous prime is 1231548001193. The next prime is 1231548001219. The reversal of 1231548001200 is 21008451321.

It is a tau number, because it is divible by the number of its divisors (180).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15510249 + ... + 15589448.

Almost surely, 2^{1231548001200} is an apocalyptic number.

1231548001200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1231548001200 is an abundant number, since it is smaller than the sum of its proper divisors (3430794324168).

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

1231548001200 is a wasteful number, since it uses less digits than its factorization.

1231548001200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31099732 (or 31099718 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The spelling of 1231548001200 in words is "one trillion, two hundred thirty-one billion, five hundred forty-eight million, one thousand, two hundred".