105143220355 has 16 divisors (see below), whose sum is σ = 133946269920. Its totient is φ = 78957752832.

The previous prime is 105143220337. The next prime is 105143220359. The reversal of 105143220355 is 553022341501.

It is a de Polignac number, because none of the positive numbers 2^k-105143220355 is a prime.

It is a super-2 number, since 2×105143220355² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105143220359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1599684 + ... + 1664113.

It is an arithmetic number, because the mean of its divisors is an integer number (8371641870).

Almost surely, 2^105143220355 is an apocalyptic number.

105143220355 is a deficient number, since it is larger than the sum of its proper divisors (28803049565).

105143220355 is a wasteful number, since it uses less digits than its factorization.

105143220355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3264198.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 105143220355 its reverse (553022341501), we get a palindrome (658165561856).

The spelling of 105143220355 in words is "one hundred five billion, one hundred forty-three million, two hundred twenty thousand, three hundred fifty-five".