1323673278000 has 640 divisors, whose sum is σ = 4680770125824. Its totient is φ = 320366592000.

The previous prime is 1323673277957. The next prime is 1323673278019. The reversal of 1323673278000 is 8723763231.

It is a super-2 number, since 2×1323673278000² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1211045454 + ... + 1211046546.

Almost surely, 2^{1323673278000} is an apocalyptic number.

1323673278000 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 1323673278000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2340385062912).

1323673278000 is an abundant number, since it is smaller than the sum of its proper divisors (3357096847824).

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

1323673278000 is a wasteful number, since it uses less digits than its factorization.

1323673278000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550 (or 1534 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 42.

The spelling of 1323673278000 in words is "one trillion, three hundred twenty-three billion, six hundred seventy-three million, two hundred seventy-eight thousand".