10381100391 has 12 divisors (see below), whose sum is σ = 15511989480. Its totient is φ = 6682087440.

The previous prime is 10381100383. The next prime is 10381100423. The reversal of 10381100391 is 19300118301.

It is a happy number.

It is not a de Polignac number, because 10381100391 - 2³ = 10381100383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10381100381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19886905 + ... + 19887426.

It is an arithmetic number, because the mean of its divisors is an integer number (1292665790).

Almost surely, 2^10381100391 is an apocalyptic number.

10381100391 is a deficient number, since it is larger than the sum of its proper divisors (5130889089).

10381100391 is a wasteful number, since it uses less digits than its factorization.

10381100391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39774366 (or 39774363 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

Adding to 10381100391 its reverse (19300118301), we get a palindrome (29681218692).

The spelling of 10381100391 in words is "ten billion, three hundred eighty-one million, one hundred thousand, three hundred ninety-one".