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1240113230213 = 111323377048717
BaseRepresentation
bin10010000010111100100…
…000100011000110000101
311101112221121211100010112
4102002330200203012011
5130304222441331323
62345411122202405
7155411106351044
oct22027440430605
94345847740115
101240113230213
11438a24652720
121804134b3405
138cc32c639a0
1444043b6c55b
15223d15dc178
hex120bc823185

1240113230213 has 16 divisors (see below), whose sum is σ = 1520260430976. Its totient is φ = 995408610240.

The previous prime is 1240113230189. The next prime is 1240113230221. The reversal of 1240113230213 is 3120323110421.

It is not a de Polignac number, because 1240113230213 - 222 = 1240109035909 is a prime.

It is a super-2 number, since 2×12401132302132 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240113230243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188521070 + ... + 188527647.

It is an arithmetic number, because the mean of its divisors is an integer number (95016276936).

Almost surely, 21240113230213 is an apocalyptic number.

1240113230213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1240113230213 is a deficient number, since it is larger than the sum of its proper divisors (280147200763).

1240113230213 is a wasteful number, since it uses less digits than its factorization.

1240113230213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377048764.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1240113230213 its reverse (3120323110421), we get a palindrome (4360436340634).

The spelling of 1240113230213 in words is "one trillion, two hundred forty billion, one hundred thirteen million, two hundred thirty thousand, two hundred thirteen".

Divisors: 1 11 13 23 143 253 299 3289 377048717 4147535887 4901633321 8672120491 53917966531 95393325401 112737566383 1240113230213