1042111505451 has 32 divisors (see below), whose sum is σ = 1431353064960. Its totient is φ = 673921714176.

The previous prime is 1042111505429. The next prime is 1042111505483. The reversal of 1042111505451 is 1545051112401.

It is not a de Polignac number, because 1042111505451 - 2³³ = 1033521570859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1042111504451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63077370 + ... + 63093888.

It is an arithmetic number, because the mean of its divisors is an integer number (44729783280).

Almost surely, 2^{1042111505451} is an apocalyptic number.

1042111505451 is a deficient number, since it is larger than the sum of its proper divisors (389241559509).

1042111505451 is a wasteful number, since it uses less digits than its factorization.

1042111505451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18243.

The product of its (nonzero) digits is 4000, while the sum is 30.

Adding to 1042111505451 its reverse (1545051112401), we get a palindrome (2587162617852).

The spelling of 1042111505451 in words is "one trillion, forty-two billion, one hundred eleven million, five hundred five thousand, four hundred fifty-one".