105242023555 has 32 divisors (see below), whose sum is σ = 135560154240. Its totient is φ = 78277570560.

The previous prime is 105242023553. The next prime is 105242023589. The reversal of 105242023555 is 555320242501.

It is not a de Polignac number, because 105242023555 - 2¹ = 105242023553 is a prime.

It is a super-2 number, since 2×105242023555² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105242023555.

It is not an unprimeable number, because it can be changed into a prime (105242023553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 419290 + ... + 621520.

It is an arithmetic number, because the mean of its divisors is an integer number (4236254820).

Almost surely, 2^105242023555 is an apocalyptic number.

105242023555 is a deficient number, since it is larger than the sum of its proper divisors (30318130685).

105242023555 is a wasteful number, since it uses less digits than its factorization.

105242023555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202399.

The product of its (nonzero) digits is 60000, while the sum is 34.

The spelling of 105242023555 in words is "one hundred five billion, two hundred forty-two million, twenty-three thousand, five hundred fifty-five".