1100080037381 has 4 divisors (see below), whose sum is σ = 1184701578732. Its totient is φ = 1015458496032.

The previous prime is 1100080037377. The next prime is 1100080037393. The reversal of 1100080037381 is 1837300800011.

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

It can be written as a sum of positive squares in 2 ways, for example, as 219126972100 + 880953065281 = 468110^2 + 938591^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100080037381 - 2² = 1100080037377 is a prime.

It is a super-2 number, since 2×1100080037381² (a number of 25 digits) 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 (1100080037341) 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, 42310770656 + ... + 42310770681.

It is an arithmetic number, because the mean of its divisors is an integer number (296175394683).

Almost surely, 2^{1100080037381} is an apocalyptic number.

It is an amenable number.

1100080037381 is a deficient number, since it is larger than the sum of its proper divisors (84621541351).

1100080037381 is an equidigital number, since it uses as much as digits as its factorization.

1100080037381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84621541350.

The product of its (nonzero) digits is 4032, while the sum is 32.

Adding to 1100080037381 its reverse (1837300800011), we get a palindrome (2937380837392).

The spelling of 1100080037381 in words is "one trillion, one hundred billion, eighty million, thirty-seven thousand, three hundred eighty-one".