105145434012 has 72 divisors (see below), whose sum is σ = 249771211536. Its totient is φ = 34426225152.

The previous prime is 105145434011. The next prime is 105145434013. The reversal of 105145434012 is 210434541501.

It is an interprime number because it is at equal distance from previous prime (105145434011) and next prime (105145434013).

It is a super-2 number, since 2×105145434012² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105145434011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20090148 + ... + 20095380.

Almost surely, 2^105145434012 is an apocalyptic number.

105145434012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

105145434012 is an abundant number, since it is smaller than the sum of its proper divisors (144625777524).

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

105145434012 is a wasteful number, since it uses less digits than its factorization.

105145434012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5747 (or 5678 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 105145434012 its reverse (210434541501), we get a palindrome (315579975513).

The spelling of 105145434012 in words is "one hundred five billion, one hundred forty-five million, four hundred thirty-four thousand, twelve".