1220445231453 has 64 divisors (see below), whose sum is σ = 2096718397440. Its totient is φ = 687217608000.

The previous prime is 1220445231413. The next prime is 1220445231461. The reversal of 1220445231453 is 3541325440221.

It is a happy number.

1220445231453 is a `hidden beast` number, since 12 + 20 + 44 + 523 + 14 + 53 = 666.

It is not a de Polignac number, because 1220445231453 - 2⁶ = 1220445231389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220445231413) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3876276 + ... + 4179282.

It is an arithmetic number, because the mean of its divisors is an integer number (32761224960).

Almost surely, 2^{1220445231453} is an apocalyptic number.

It is an amenable number.

1220445231453 is a deficient number, since it is larger than the sum of its proper divisors (876273165987).

1220445231453 is a wasteful number, since it uses less digits than its factorization.

1220445231453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303335 (or 303329 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 1220445231453 in words is "one trillion, two hundred twenty billion, four hundred forty-five million, two hundred thirty-one thousand, four hundred fifty-three".