1373123701155 has 16 divisors (see below), whose sum is σ = 2292519571200. Its totient is φ = 700492090848.

The previous prime is 1373123701151. The next prime is 1373123701199. The reversal of 1373123701155 is 5511073213731.

It is not a de Polignac number, because 1373123701155 - 2² = 1373123701151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1373123701151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1990034005 + ... + 1990034694.

It is an arithmetic number, because the mean of its divisors is an integer number (143282473200).

Almost surely, 2^{1373123701155} is an apocalyptic number.

1373123701155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1373123701155 is a deficient number, since it is larger than the sum of its proper divisors (919395870045).

1373123701155 is a wasteful number, since it uses less digits than its factorization.

1373123701155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3980068730.

The product of its (nonzero) digits is 66150, while the sum is 39.

Adding to 1373123701155 its reverse (5511073213731), we get a palindrome (6884196914886).

The spelling of 1373123701155 in words is "one trillion, three hundred seventy-three billion, one hundred twenty-three million, seven hundred one thousand, one hundred fifty-five".