1121301223400 has 24 divisors (see below), whose sum is σ = 2607025344870. Its totient is φ = 448520489280.

The previous prime is 1121301223387. The next prime is 1121301223423. The reversal of 1121301223400 is 43221031211.

It can be written as a sum of positive squares in 3 ways, for example, as 863007556324 + 258293667076 = 928982^2 + 508226^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2803252859 + ... + 2803253258.

Almost surely, 2^{1121301223400} is an apocalyptic number.

1121301223400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121301223400 is an abundant number, since it is smaller than the sum of its proper divisors (1485724121470).

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

1121301223400 is a wasteful number, since it uses less digits than its factorization.

1121301223400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5606506133 (or 5606506124 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1121301223400 its reverse (43221031211), we get a palindrome (1164522254611).

The spelling of 1121301223400 in words is "one trillion, one hundred twenty-one billion, three hundred one million, two hundred twenty-three thousand, four hundred".