105155020253 has 4 divisors (see below), whose sum is σ = 105156757728. Its totient is φ = 105153282780.

The previous prime is 105155020211. The next prime is 105155020277. The reversal of 105155020253 is 352020551501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 105155020253 - 2⁶ = 105155020189 is a prime.

It is a super-2 number, since 2×105155020253² (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 (105155020753) 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, 774551 + ... + 900132.

It is an arithmetic number, because the mean of its divisors is an integer number (26289189432).

Almost surely, 2^105155020253 is an apocalyptic number.

It is an amenable number.

105155020253 is a deficient number, since it is larger than the sum of its proper divisors (1737475).

105155020253 is an equidigital number, since it uses as much as digits as its factorization.

105155020253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737474.

The product of its (nonzero) digits is 7500, while the sum is 29.

Adding to 105155020253 its reverse (352020551501), we get a palindrome (457175571754).

The spelling of 105155020253 in words is "one hundred five billion, one hundred fifty-five million, twenty thousand, two hundred fifty-three".