1101320021000 has 64 divisors (see below), whose sum is σ = 2591327334960. Its totient is φ = 438094080000.

The previous prime is 1101320020987. The next prime is 1101320021047. The reversal of 1101320021000 is 1200231011.

It can be written as a sum of positive squares in 8 ways, for example, as 123764647204 + 977555373796 = 351802^2 + 988714^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2861321 + ... + 3223320.

Almost surely, 2^{1101320021000} is an apocalyptic number.

1101320021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101320021000 is an abundant number, since it is smaller than the sum of its proper divisors (1490007313960).

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

1101320021000 is a wasteful number, since it uses less digits than its factorization.

1101320021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6084843 (or 6084829 counting only the distinct ones).

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

Adding to 1101320021000 its reverse (1200231011), we get a palindrome (1102520252011).

The spelling of 1101320021000 in words is "one trillion, one hundred one billion, three hundred twenty million, twenty-one thousand".