103025011645 has 4 divisors (see below), whose sum is σ = 123630013980. Its totient is φ = 82420009312.

The previous prime is 103025011577. The next prime is 103025011711. The reversal of 103025011645 is 546110520301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 546110520301 = 17 ⋅32124148253.

It can be written as a sum of positive squares in 2 ways, for example, as 78535578564 + 24489433081 = 280242^2 + 156491^2 .

It is a cyclic number.

It is not a de Polignac number, because 103025011645 - 2¹³ = 103025003453 is a prime.

It is a super-2 number, since 2×103025011645² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 10302501160 + ... + 10302501169.

It is an arithmetic number, because the mean of its divisors is an integer number (30907503495).

Almost surely, 2^103025011645 is an apocalyptic number.

It is an amenable number.

103025011645 is a deficient number, since it is larger than the sum of its proper divisors (20605002335).

103025011645 is an equidigital number, since it uses as much as digits as its factorization.

103025011645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20605002334.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 103025011645 its reverse (546110520301), we get a palindrome (649135531946).

The spelling of 103025011645 in words is "one hundred three billion, twenty-five million, eleven thousand, six hundred forty-five".