103261161345 has 16 divisors (see below), whose sum is σ = 165234349440. Its totient is φ = 55067122304.

The previous prime is 103261161343. The next prime is 103261161403. The reversal of 103261161345 is 543161162301.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 103261161345 - 2¹ = 103261161343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103261161343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185949 + ... + 491018.

It is an arithmetic number, because the mean of its divisors is an integer number (10327146840).

Almost surely, 2^103261161345 is an apocalyptic number.

103261161345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103261161345 is a deficient number, since it is larger than the sum of its proper divisors (61973188095).

103261161345 is a wasteful number, since it uses less digits than its factorization.

103261161345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687144.

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 103261161345 in words is "one hundred three billion, two hundred sixty-one million, one hundred sixty-one thousand, three hundred forty-five".