201123103111232 has 28 divisors (see below), whose sum is σ = 401782205793900. Its totient is φ = 99886641808896.

The previous prime is 201123103111219. The next prime is 201123103111277. The reversal of 201123103111232 is 232111301321102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 57635670177856 + 143487432933376 = 7591816^2 + 11978624^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201123103111198 and 201123103111207.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10545455183 + ... + 10545474254.

Almost surely, 2^{201123103111232} is an apocalyptic number.

It is an amenable number.

201123103111232 is a deficient number, since it is larger than the sum of its proper divisors (200659102682668).

201123103111232 is a wasteful number, since it uses less digits than its factorization.

201123103111232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21090929598 (or 21090929588 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 201123103111232 its reverse (232111301321102), we get a palindrome (433234404432334).

The spelling of 201123103111232 in words is "two hundred one trillion, one hundred twenty-three billion, one hundred three million, one hundred eleven thousand, two hundred thirty-two".