1321754112 has 400 divisors, whose sum is σ = 4693851360. Its totient is φ = 362299392.

The previous prime is 1321754101. The next prime is 1321754113. The reversal of 1321754112 is 2114571231.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321754113) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8418738 + ... + 8418894.

Almost surely, 2^1321754112 is an apocalyptic number.

1321754112 is a gapful number since it is divisible by the number (12) 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 1321754112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2346925680).

1321754112 is an abundant number, since it is smaller than the sum of its proper divisors (3372097248).

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

1321754112 is an equidigital number, since it uses as much as digits as its factorization.

1321754112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 198 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 1321754112 is about 36355.9364065898. The cubic root of 1321754112 is about 1097.4470027317.

The spelling of 1321754112 in words is "one billion, three hundred twenty-one million, seven hundred fifty-four thousand, one hundred twelve".