105231440351 has 4 divisors (see below), whose sum is σ = 105302114400. Its totient is φ = 105160766304.

The previous prime is 105231440333. The next prime is 105231440381. The reversal of 105231440351 is 153044132501.

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

It is a cyclic number.

It is not a de Polignac number, because 105231440351 - 2⁶ = 105231440287 is a prime.

It is a super-2 number, since 2×105231440351² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105231440381) 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, 35334791 + ... + 35337768.

It is an arithmetic number, because the mean of its divisors is an integer number (26325528600).

Almost surely, 2^105231440351 is an apocalyptic number.

105231440351 is a deficient number, since it is larger than the sum of its proper divisors (70674049).

105231440351 is an equidigital number, since it uses as much as digits as its factorization.

105231440351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70674048.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 105231440351 its reverse (153044132501), we get a palindrome (258275572852).

The spelling of 105231440351 in words is "one hundred five billion, two hundred thirty-one million, four hundred forty thousand, three hundred fifty-one".