1011011212003 has 4 divisors (see below), whose sum is σ = 1088781305248. Its totient is φ = 933241118760.

The previous prime is 1011011211983. The next prime is 1011011212007. The reversal of 1011011212003 is 3002121101101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1011011212003 - 2¹⁷ = 1011011080931 is a prime.

It is a super-2 number, since 2×1011011212003² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 77770093231 = 1011011212003 / (1 + 0 + 1 + 1 + 0 + 1 + 1 + 2 + 1 + 2 + 0 + 0 + 3).

It is not an unprimeable number, because it can be changed into a prime (1011011212007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38885046603 + ... + 38885046628.

It is an arithmetic number, because the mean of its divisors is an integer number (272195326312).

Almost surely, 2^{1011011212003} is an apocalyptic number.

1011011212003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1011011212003 is a deficient number, since it is larger than the sum of its proper divisors (77770093245).

1011011212003 is an equidigital number, since it uses as much as digits as its factorization.

1011011212003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77770093244.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1011011212003 its reverse (3002121101101), we get a palindrome (4013132313104).

The spelling of 1011011212003 in words is "one trillion, eleven billion, eleven million, two hundred twelve thousand, three".