451542211120023 has 16 divisors (see below), whose sum is σ = 605849680101120. Its totient is φ = 299132562105216.

The previous prime is 451542211120019. The next prime is 451542211120043. The reversal of 451542211120023 is 320021112245154.

It is not a de Polignac number, because 451542211120023 - 2² = 451542211120019 is a prime.

It is a super-2 number, since 2×451542211120023² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451542211120043) 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, 138469393 + ... + 141692826.

It is an arithmetic number, because the mean of its divisors is an integer number (37865605006320).

Almost surely, 2^{451542211120023} is an apocalyptic number.

451542211120023 is a deficient number, since it is larger than the sum of its proper divisors (154307468981097).

451542211120023 is a wasteful number, since it uses less digits than its factorization.

451542211120023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280165606.

The product of its (nonzero) digits is 19200, while the sum is 33.

Adding to 451542211120023 its reverse (320021112245154), we get a palindrome (771563323365177).

The spelling of 451542211120023 in words is "four hundred fifty-one trillion, five hundred forty-two billion, two hundred eleven million, one hundred twenty thousand, twenty-three".