105542451011 has 4 divisors (see below), whose sum is σ = 105934802400. Its totient is φ = 105150099624.

The previous prime is 105542450999. The next prime is 105542451013. The reversal of 105542451011 is 110154245501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105542451011 is a prime.

It is a super-2 number, since 2×105542451011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105542451013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196175291 + ... + 196175828.

It is an arithmetic number, because the mean of its divisors is an integer number (26483700600).

Almost surely, 2^105542451011 is an apocalyptic number.

105542451011 is a deficient number, since it is larger than the sum of its proper divisors (392351389).

105542451011 is an equidigital number, since it uses as much as digits as its factorization.

105542451011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392351388.

The product of its (nonzero) digits is 4000, while the sum is 29.

Adding to 105542451011 its reverse (110154245501), we get a palindrome (215696696512).

The spelling of 105542451011 in words is "one hundred five billion, five hundred forty-two million, four hundred fifty-one thousand, eleven".