103312061 has 4 divisors (see below), whose sum is σ = 103393500. Its totient is φ = 103230624.

The previous prime is 103312049. The next prime is 103312073. The reversal of 103312061 is 160213301.

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

It is an interprime number because it is at equal distance from previous prime (103312049) and next prime (103312073).

It can be written as a sum of positive squares in 2 ways, for example, as 93508900 + 9803161 = 9670^2 + 3131^2 .

It is a cyclic number.

It is not a de Polignac number, because 103312061 - 2¹⁴ = 103295677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103312361) 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, 38786 + ... + 41363.

It is an arithmetic number, because the mean of its divisors is an integer number (25848375).

Almost surely, 2^103312061 is an apocalyptic number.

It is an amenable number.

103312061 is a deficient number, since it is larger than the sum of its proper divisors (81439).

103312061 is an equidigital number, since it uses as much as digits as its factorization.

103312061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81438.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 103312061 is about 10164.2540798624. The cubic root of 103312061 is about 469.2277358503.

Adding to 103312061 its reverse (160213301), we get a palindrome (263525362).

The spelling of 103312061 in words is "one hundred three million, three hundred twelve thousand, sixty-one".