11023121000 has 32 divisors (see below), whose sum is σ = 25794105480. Its totient is φ = 4409248000.

The previous prime is 11023120973. The next prime is 11023121027. The reversal of 11023121000 is 12132011.

It is an interprime number because it is at equal distance from previous prime (11023120973) and next prime (11023121027).

It can be written as a sum of positive squares in 4 ways, for example, as 3921013924 + 7102107076 = 62618^2 + 84274^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5510561 + ... + 5512560.

Almost surely, 2^11023121000 is an apocalyptic number.

11023121000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11023121000 is an abundant number, since it is smaller than the sum of its proper divisors (14770984480).

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

11023121000 is a wasteful number, since it uses less digits than its factorization.

11023121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11023142 (or 11023128 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 11023121000 its reverse (12132011), we get a palindrome (11035253011).

The spelling of 11023121000 in words is "eleven billion, twenty-three million, one hundred twenty-one thousand".