1011233021323 has 24 divisors (see below), whose sum is σ = 1224211145472. Its totient is φ = 816710464944.

The previous prime is 1011233021299. The next prime is 1011233021329. The reversal of 1011233021323 is 3231203321101.

It is a de Polignac number, because none of the positive numbers 2^k-1011233021323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1011233021294 and 1011233021303.

It is not an unprimeable number, because it can be changed into a prime (1011233021329) 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, 23136 + ... + 1422322.

It is an arithmetic number, because the mean of its divisors is an integer number (51008797728).

Almost surely, 2^{1011233021323} is an apocalyptic number.

1011233021323 is a deficient number, since it is larger than the sum of its proper divisors (212978124149).

1011233021323 is an equidigital number, since it uses as much as digits as its factorization.

1011233021323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399351 (or 1399284 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1011233021323 its reverse (3231203321101), we get a palindrome (4242436342424).

The spelling of 1011233021323 in words is "one trillion, eleven billion, two hundred thirty-three million, twenty-one thousand, three hundred twenty-three".