1223276453280 has 576 divisors, whose sum is σ = 4809864084480. Its totient is φ = 277325733888.

The previous prime is 1223276453279. The next prime is 1223276453299. The reversal of 1223276453280 is 823546723221.

1223276453280 is a `hidden beast` number, since 1 + 2 + 2 + 32 + 7 + 6 + 4 + 532 + 80 = 666.

It is a super-2 number, since 2×1223276453280² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 705871294 + ... + 705873026.

It is an arithmetic number, because the mean of its divisors is an integer number (8350458480).

Almost surely, 2^{1223276453280} is an apocalyptic number.

1223276453280 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 1223276453280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2404932042240).

1223276453280 is an abundant number, since it is smaller than the sum of its proper divisors (3586587631200).

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

1223276453280 is a wasteful number, since it uses less digits than its factorization.

1223276453280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293 (or 2282 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 1223276453280 in words is "one trillion, two hundred twenty-three billion, two hundred seventy-six million, four hundred fifty-three thousand, two hundred eighty".