1231023012000 has 96 divisors (see below), whose sum is σ = 4032831426624. Its totient is φ = 328272800000.

The previous prime is 1231023011993. The next prime is 1231023012031. The reversal of 1231023012000 is 2103201321.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51280626 + ... + 51304625.

It is an arithmetic number, because the mean of its divisors is an integer number (42008660694).

Almost surely, 2^{1231023012000} is an apocalyptic number.

1231023012000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1231023012000 is an abundant number, since it is smaller than the sum of its proper divisors (2801808414624).

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

1231023012000 is a wasteful number, since it uses less digits than its factorization.

1231023012000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102585279 (or 102585261 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1231023012000 its reverse (2103201321), we get a palindrome (1233126213321).

The spelling of 1231023012000 in words is "one trillion, two hundred thirty-one billion, twenty-three million, twelve thousand".