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1231041031424 = 2813591353819
BaseRepresentation
bin10001111010011111110…
…000110110110100000000
311100200112100212212222222
4101322133300312310000
5130132133001001144
62341311001350212
7154640226054641
oct21723760666400
94320470785888
101231041031424
11435099629476
1217a701198368
138c118555119
1443822d216c8
152204eded2ee
hex11e9fc36d00

1231041031424 has 36 divisors (see below), whose sum is σ = 2457461055840. Its totient is φ = 615473487360.

The previous prime is 1231041031421. The next prime is 1231041031439. The reversal of 1231041031424 is 4241301401321.

It is a junction number, because it is equal to n+sod(n) for n = 1231041031393 and 1231041031402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231041031421) 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, 3302387 + ... + 3656205.

Almost surely, 21231041031424 is an apocalyptic number.

It is an amenable number.

1231041031424 is a deficient number, since it is larger than the sum of its proper divisors (1226420024416).

1231041031424 is an equidigital number, since it uses as much as digits as its factorization.

1231041031424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367426 (or 367412 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 1231041031424 its reverse (4241301401321), we get a palindrome (5472342432745).

The spelling of 1231041031424 in words is "one trillion, two hundred thirty-one billion, forty-one million, thirty-one thousand, four hundred twenty-four".

Divisors: 1 2 4 8 16 32 64 128 256 13591 27182 54364 108728 217456 353819 434912 707638 869824 1415276 1739648 2830552 3479296 5661104 11322208 22644416 45288832 90577664 4808754029 9617508058 19235016116 38470032232 76940064464 153880128928 307760257856 615520515712 1231041031424