1012355443239 has 32 divisors (see below), whose sum is σ = 1561434900480. Its totient is φ = 571441456992.

The previous prime is 1012355443171. The next prime is 1012355443241. The reversal of 1012355443239 is 9323445532101.

It is not a de Polignac number, because 1012355443239 - 2¹⁶ = 1012355377703 is a prime.

It is a super-2 number, since 2×1012355443239² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1012355443239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012355443279) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14290384 + ... + 14361050.

It is an arithmetic number, because the mean of its divisors is an integer number (48794840640).

Almost surely, 2^{1012355443239} is an apocalyptic number.

1012355443239 is a deficient number, since it is larger than the sum of its proper divisors (549079457241).

1012355443239 is an equidigital number, since it uses as much as digits as its factorization.

1012355443239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78979.

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 1012355443239 in words is "one trillion, twelve billion, three hundred fifty-five million, four hundred forty-three thousand, two hundred thirty-nine".