1420123045544 has 64 divisors (see below), whose sum is σ = 3141764736000. Its totient is φ = 588901363200.

The previous prime is 1420123045541. The next prime is 1420123045567. The reversal of 1420123045544 is 4455403210241.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1420123045541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12004604 + ... + 12122324.

It is an arithmetic number, because the mean of its divisors is an integer number (49090074000).

Almost surely, 2^{1420123045544} is an apocalyptic number.

1420123045544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1420123045544 is an abundant number, since it is smaller than the sum of its proper divisors (1721641690456).

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

1420123045544 is a wasteful number, since it uses less digits than its factorization.

1420123045544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124714 (or 124710 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 1420123045544 its reverse (4455403210241), we get a palindrome (5875526255785).

The spelling of 1420123045544 in words is "one trillion, four hundred twenty billion, one hundred twenty-three million, forty-five thousand, five hundred forty-four".