2111452451442 has 16 divisors (see below), whose sum is σ = 4692116558880. Its totient is φ = 703817483796.

The previous prime is 2111452451441. The next prime is 2111452451461. The reversal of 2111452451442 is 2441542541112.

It is a happy number.

2111452451442 is a `hidden beast` number, since 2 + 1 + 1 + 145 + 24 + 51 + 442 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2111452451397 and 2111452451406.

It is not an unprimeable number, because it can be changed into a prime (2111452451441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19550485608 + ... + 19550485715.

It is an arithmetic number, because the mean of its divisors is an integer number (293257284930).

Almost surely, 2^{2111452451442} is an apocalyptic number.

2111452451442 is an abundant number, since it is smaller than the sum of its proper divisors (2580664107438).

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

2111452451442 is a wasteful number, since it uses less digits than its factorization.

2111452451442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39100971334 (or 39100971328 counting only the distinct ones).

The product of its digits is 51200, while the sum is 36.

Adding to 2111452451442 its reverse (2441542541112), we get a palindrome (4552994992554).

The spelling of 2111452451442 in words is "two trillion, one hundred eleven billion, four hundred fifty-two million, four hundred fifty-one thousand, four hundred forty-two".