105514103021 has 4 divisors (see below), whose sum is σ = 106060808412. Its totient is φ = 104967397632.

The previous prime is 105514103011. The next prime is 105514103027. The reversal of 105514103021 is 120301415501.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17619642121 + 87894460900 = 132739^2 + 296470^2 .

It is a cyclic number.

It is not a de Polignac number, because 105514103021 - 2²² = 105509908717 is a prime.

It is a super-2 number, since 2×105514103021² (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 (105514103027) 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, 273352406 + ... + 273352791.

It is an arithmetic number, because the mean of its divisors is an integer number (26515202103).

Almost surely, 2^105514103021 is an apocalyptic number.

It is an amenable number.

105514103021 is a deficient number, since it is larger than the sum of its proper divisors (546705391).

105514103021 is an equidigital number, since it uses as much as digits as its factorization.

105514103021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546705390.

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 105514103021 its reverse (120301415501), we get a palindrome (225815518522).

The spelling of 105514103021 in words is "one hundred five billion, five hundred fourteen million, one hundred three thousand, twenty-one".