103405215377 has 2 divisors, whose sum is σ = 103405215378. Its totient is φ = 103405215376.

The previous prime is 103405215373. The next prime is 103405215437. The reversal of 103405215377 is 773512504301.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58679733121 + 44725482256 = 242239^2 + 211484^2 .

It is a cyclic number.

It is not a de Polignac number, because 103405215377 - 2² = 103405215373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103405215377.

It is not a weakly prime, because it can be changed into another prime (103405215373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51702607688 + 51702607689.

It is an arithmetic number, because the mean of its divisors is an integer number (51702607689).

Almost surely, 2^103405215377 is an apocalyptic number.

It is an amenable number.

103405215377 is a deficient number, since it is larger than the sum of its proper divisors (1).

103405215377 is an equidigital number, since it uses as much as digits as its factorization.

103405215377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88200, while the sum is 38.

Adding to 103405215377 its reverse (773512504301), we get a palindrome (876917719678).

The spelling of 103405215377 in words is "one hundred three billion, four hundred five million, two hundred fifteen thousand, three hundred seventy-seven".