1231502541982 has 32 divisors (see below), whose sum is σ = 1936702962720. Its totient is φ = 586714078080.

The previous prime is 1231502541979. The next prime is 1231502542027. The reversal of 1231502541982 is 2891452051321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 438033 + ... + 1629379.

It is an arithmetic number, because the mean of its divisors is an integer number (60521967585).

Almost surely, 2^{1231502541982} is an apocalyptic number.

1231502541982 is a deficient number, since it is larger than the sum of its proper divisors (705200420738).

1231502541982 is a wasteful number, since it uses less digits than its factorization.

1231502541982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191676.

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 1231502541982 in words is "one trillion, two hundred thirty-one billion, five hundred two million, five hundred forty-one thousand, nine hundred eighty-two".