1100121432 has 32 divisors (see below), whose sum is σ = 2895057600. Its totient is φ = 347406624.

The previous prime is 1100121427. The next prime is 1100121437. The reversal of 1100121432 is 2341210011.

It is an interprime number because it is at equal distance from previous prime (1100121427) and next prime (1100121437).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100121437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1205818 + ... + 1206729.

It is an arithmetic number, because the mean of its divisors is an integer number (90470550).

Almost surely, 2^1100121432 is an apocalyptic number.

1100121432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1100121432 is an abundant number, since it is smaller than the sum of its proper divisors (1794936168).

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

1100121432 is a wasteful number, since it uses less digits than its factorization.

1100121432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2412575 (or 2412571 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1100121432 is about 33168.0785093137. The cubic root of 1100121432 is about 1032.3180994644.

Adding to 1100121432 its reverse (2341210011), we get a palindrome (3441331443).

The spelling of 1100121432 in words is "one billion, one hundred million, one hundred twenty-one thousand, four hundred thirty-two".