142440011443521 has 48 divisors (see below), whose sum is σ = 227182233987072. Its totient is φ = 85277025007200.

The previous prime is 142440011443519. The next prime is 142440011443523. The reversal of 142440011443521 is 125344110044241.

142440011443521 is a `hidden beast` number, since 1 + 42 + 4 + 40 + 0 + 1 + 14 + 43 + 521 = 666.

It is an interprime number because it is at equal distance from previous prime (142440011443519) and next prime (142440011443523).

It is not a de Polignac number, because 142440011443521 - 2¹ = 142440011443519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142440011443523) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68182776 + ... + 70240806.

It is an arithmetic number, because the mean of its divisors is an integer number (4732963208064).

Almost surely, 2^{142440011443521} is an apocalyptic number.

142440011443521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142440011443521 is a deficient number, since it is larger than the sum of its proper divisors (84742222543551).

142440011443521 is a wasteful number, since it uses less digits than its factorization.

142440011443521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066554 (or 2066551 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

Adding to 142440011443521 its reverse (125344110044241), we get a palindrome (267784121487762).

The spelling of 142440011443521 in words is "one hundred forty-two trillion, four hundred forty billion, eleven million, four hundred forty-three thousand, five hundred twenty-one".