105261203138 has 32 divisors (see below), whose sum is σ = 199068105600. Its totient is φ = 40626138240.

The previous prime is 105261203119. The next prime is 105261203191. The reversal of 105261203138 is 831302162501.

It is a super-2 number, since 2×105261203138² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7045688 + ... + 7060611.

It is an arithmetic number, because the mean of its divisors is an integer number (6220878300).

Almost surely, 2^105261203138 is an apocalyptic number.

105261203138 is a deficient number, since it is larger than the sum of its proper divisors (93806902462).

105261203138 is a wasteful number, since it uses less digits than its factorization.

105261203138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14106362.

The product of its (nonzero) digits is 8640, while the sum is 32.

Adding to 105261203138 its reverse (831302162501), we get a palindrome (936563365639).

The spelling of 105261203138 in words is "one hundred five billion, two hundred sixty-one million, two hundred three thousand, one hundred thirty-eight".