105030321512 has 16 divisors (see below), whose sum is σ = 197108173860. Its totient is φ = 52468141824.

The previous prime is 105030321509. The next prime is 105030321541. The reversal of 105030321512 is 215123030501.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 92363719396 + 12666602116 = 303914^2 + 112546^2 .

It is a super-2 number, since 2×105030321512² (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 3 ways as a sum of consecutive naturals, for example, 5867873 + ... + 5885744.

Almost surely, 2^105030321512 is an apocalyptic number.

It is an amenable number.

105030321512 is a deficient number, since it is larger than the sum of its proper divisors (92077852348).

105030321512 is a wasteful number, since it uses less digits than its factorization.

105030321512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11754740 (or 11754736 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The spelling of 105030321512 in words is "one hundred five billion, thirty million, three hundred twenty-one thousand, five hundred twelve".