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12401441138 = 215881390449
BaseRepresentation
bin10111000110010111…
…01111100101110010
31012000021111111001202
423203023233211302
5200344232104023
65410325531202
7616214340032
oct134313574562
935007444052
1012401441138
115294321309
1224a1273b02
13122838c068
148590798c2
154c8b1b128
hex2e32ef972

12401441138 has 8 divisors (see below), whose sum is σ = 18603380700. Its totient is φ = 6200314240.

The previous prime is 12401441119. The next prime is 12401441141. The reversal of 12401441138 is 83114410421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12391474489 + 9966649 = 111317^2 + 3157^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12401441138.

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, 163463 + ... + 226986.

Almost surely, 212401441138 is an apocalyptic number.

12401441138 is a deficient number, since it is larger than the sum of its proper divisors (6201939562).

12401441138 is a wasteful number, since it uses less digits than its factorization.

12401441138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406332.

The product of its (nonzero) digits is 3072, while the sum is 29.

Adding to 12401441138 its reverse (83114410421), we get a palindrome (95515851559).

The spelling of 12401441138 in words is "twelve billion, four hundred one million, four hundred forty-one thousand, one hundred thirty-eight".

Divisors: 1 2 15881 31762 390449 780898 6200720569 12401441138