1260550101 has 4 divisors (see below), whose sum is σ = 1680733472. Its totient is φ = 840366732.

The previous prime is 1260550099. The next prime is 1260550103. The reversal of 1260550101 is 1010550621.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1010550621 = 3 ⋅336850207.

It is an interprime number because it is at equal distance from previous prime (1260550099) and next prime (1260550103).

It is not a de Polignac number, because 1260550101 - 2¹ = 1260550099 is a prime.

It is a super-2 number, since 2×1260550101² = 3177973114262220402, which 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 (1260550103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210091681 + ... + 210091686.

It is an arithmetic number, because the mean of its divisors is an integer number (420183368).

Almost surely, 2^1260550101 is an apocalyptic number.

It is an amenable number.

1260550101 is a deficient number, since it is larger than the sum of its proper divisors (420183371).

1260550101 is an equidigital number, since it uses as much as digits as its factorization.

1260550101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420183370.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1260550101 is about 35504.2265230493. The cubic root of 1260550101 is about 1080.2394590771.

The spelling of 1260550101 in words is "one billion, two hundred sixty million, five hundred fifty thousand, one hundred one".