1011123203133 has 4 divisors (see below), whose sum is σ = 1348164270848. Its totient is φ = 674082135420.

The previous prime is 1011123203119. The next prime is 1011123203137. The reversal of 1011123203133 is 3313023211101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-1011123203133 is a prime.

It is a super-5 number, since 5×1011123203133⁵ (a number of 61 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011123203137) 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, 168520533853 + ... + 168520533858.

It is an arithmetic number, because the mean of its divisors is an integer number (337041067712).

Almost surely, 2^{1011123203133} is an apocalyptic number.

It is an amenable number.

1011123203133 is a deficient number, since it is larger than the sum of its proper divisors (337041067715).

1011123203133 is an equidigital number, since it uses as much as digits as its factorization.

1011123203133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337041067714.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1011123203133 its reverse (3313023211101), we get a palindrome (4324146414234).

The spelling of 1011123203133 in words is "one trillion, eleven billion, one hundred twenty-three million, two hundred three thousand, one hundred thirty-three".