1247003742023 has 24 divisors (see below), whose sum is σ = 1435600197792. Its totient is φ = 1080259010688.

The previous prime is 1247003742013. The next prime is 1247003742031. The reversal of 1247003742023 is 3202473007421.

It is not a de Polignac number, because 1247003742023 - 2¹⁶ = 1247003676487 is a prime.

It is a super-2 number, since 2×1247003742023² (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 (1247003742013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2820536 + ... + 3232557.

It is an arithmetic number, because the mean of its divisors is an integer number (59816674908).

Almost surely, 2^{1247003742023} is an apocalyptic number.

1247003742023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1247003742023 is a deficient number, since it is larger than the sum of its proper divisors (188596455769).

1247003742023 is a wasteful number, since it uses less digits than its factorization.

1247003742023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6053195 (or 6053182 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 35.

Adding to 1247003742023 its reverse (3202473007421), we get a palindrome (4449476749444).

The spelling of 1247003742023 in words is "one trillion, two hundred forty-seven billion, three million, seven hundred forty-two thousand, twenty-three".