1011923206338 has 16 divisors (see below), whose sum is σ = 2207832450336. Its totient is φ = 306643395840.

The previous prime is 1011923206241. The next prime is 1011923206351. The reversal of 1011923206338 is 8336023291101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1011923206296 and 1011923206305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7666084831 + ... + 7666084962.

It is an arithmetic number, because the mean of its divisors is an integer number (137989528146).

Almost surely, 2^{1011923206338} is an apocalyptic number.

1011923206338 is an abundant number, since it is smaller than the sum of its proper divisors (1195909243998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1011923206338 is a wasteful number, since it uses less digits than its factorization.

1011923206338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15332169809.

The product of its (nonzero) digits is 46656, while the sum is 39.

Adding to 1011923206338 its reverse (8336023291101), we get a palindrome (9347946497439).

The spelling of 1011923206338 in words is "one trillion, eleven billion, nine hundred twenty-three million, two hundred six thousand, three hundred thirty-eight".