1322031145440 has 48 divisors (see below), whose sum is σ = 4164398109648. Its totient is φ = 352541638656.

The previous prime is 1322031145427. The next prime is 1322031145511. The reversal of 1322031145440 is 445411302231.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1322031145398 and 1322031145407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1377115297 + ... + 1377116256.

It is an arithmetic number, because the mean of its divisors is an integer number (86758293951).

Almost surely, 2^{1322031145440} is an apocalyptic number.

1322031145440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322031145440 is an abundant number, since it is smaller than the sum of its proper divisors (2842366964208).

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

1322031145440 is a wasteful number, since it uses less digits than its factorization.

1322031145440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2754231571 (or 2754231563 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 1322031145440 its reverse (445411302231), we get a palindrome (1767442447671).

The spelling of 1322031145440 in words is "one trillion, three hundred twenty-two billion, thirty-one million, one hundred forty-five thousand, four hundred forty".