1003661253242 has 16 divisors (see below), whose sum is σ = 1543391321472. Its totient is φ = 489216211680.

The previous prime is 1003661253223. The next prime is 1003661253247. The reversal of 1003661253242 is 2423521663001.

It is a super-2 number, since 2×1003661253242² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1003661253247) 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, 4575218 + ... + 4789565.

It is an arithmetic number, because the mean of its divisors is an integer number (96461957592).

Almost surely, 2^{1003661253242} is an apocalyptic number.

1003661253242 is a deficient number, since it is larger than the sum of its proper divisors (539730068230).

1003661253242 is a wasteful number, since it uses less digits than its factorization.

1003661253242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9366133.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 1003661253242 in words is "one trillion, three billion, six hundred sixty-one million, two hundred fifty-three thousand, two hundred forty-two".