1423121120 has 96 divisors (see below), whose sum is σ = 3468769920. Its totient is φ = 551416320.

The previous prime is 1423121099. The next prime is 1423121137. The reversal of 1423121120 is 211213241.

It is a congruent number.

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, 900491 + ... + 902069.

It is an arithmetic number, because the mean of its divisors is an integer number (36133020).

Almost surely, 2^1423121120 is an apocalyptic number.

1423121120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1423121120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1734384960).

1423121120 is an abundant number, since it is smaller than the sum of its proper divisors (2045648800).

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

1423121120 is a wasteful number, since it uses less digits than its factorization.

1423121120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768 (or 1760 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1423121120 is about 37724.2775941435. The cubic root of 1423121120 is about 1124.8137620928.

Adding to 1423121120 its reverse (211213241), we get a palindrome (1634334361).

It can be divided in two parts, 1423121 and 120, that added together give a palindrome (1423241).

The spelling of 1423121120 in words is "one billion, four hundred twenty-three million, one hundred twenty-one thousand, one hundred twenty".