1121320110 has 16 divisors (see below), whose sum is σ = 2691168336. Its totient is φ = 299018688.

The previous prime is 1121320091. The next prime is 1121320129. The reversal of 1121320110 is 110231211.

It is an interprime number because it is at equal distance from previous prime (1121320091) and next prime (1121320129).

It is a congruent number.

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, 18688639 + ... + 18688698.

It is an arithmetic number, because the mean of its divisors is an integer number (168198021).

Almost surely, 2^1121320110 is an apocalyptic number.

1121320110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121320110 is an abundant number, since it is smaller than the sum of its proper divisors (1569848226).

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

1121320110 is a wasteful number, since it uses less digits than its factorization.

1121320110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37377347.

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

The square root of 1121320110 is about 33486.1181685785. The cubic root of 1121320110 is about 1038.9066758478.

Adding to 1121320110 its reverse (110231211), we get a palindrome (1231551321).

The spelling of 1121320110 in words is "one billion, one hundred twenty-one million, three hundred twenty thousand, one hundred ten".