1243097015982 has 16 divisors (see below), whose sum is σ = 2486216261712. Its totient is φ = 414361967040.

The previous prime is 1243097015959. The next prime is 1243097015983. The reversal of 1243097015982 is 2895107903421.

It is a super-2 number, since 2×1243097015982² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243097015983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149119 + ... + 1583802.

It is an arithmetic number, because the mean of its divisors is an integer number (155388516357).

Almost surely, 2^{1243097015982} is an apocalyptic number.

1243097015982 is an abundant number, since it is smaller than the sum of its proper divisors (1243119245730).

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

1243097015982 is a wasteful number, since it uses less digits than its factorization.

1243097015982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852483.

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 1243097015982 in words is "one trillion, two hundred forty-three billion, ninety-seven million, fifteen thousand, nine hundred eighty-two".