1003143555012 has 48 divisors (see below), whose sum is σ = 2412333566720. Its totient is φ = 324255179808.

The previous prime is 1003143554921. The next prime is 1003143555017. The reversal of 1003143555012 is 2105553413001.

It is a super-2 number, since 2×1003143555012² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1003143555017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6921358 + ... + 7064805.

Almost surely, 2^{1003143555012} is an apocalyptic number.

1003143555012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1003143555012 is an abundant number, since it is smaller than the sum of its proper divisors (1409190011708).

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

1003143555012 is a wasteful number, since it uses less digits than its factorization.

1003143555012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13986352 (or 13986350 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 1003143555012 its reverse (2105553413001), we get a palindrome (3108696968013).

The spelling of 1003143555012 in words is "one trillion, three billion, one hundred forty-three million, five hundred fifty-five thousand, twelve".