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1231100462113 = 10398312899433
BaseRepresentation
bin10001111010100011010…
…011100100010000100001
311100200200111201021120121
4101322203103210100201
5130132243204241423
62341320523240241
7154641550161154
oct21724323442041
94320614637517
101231100462113
1143511a130645
1217a719079081
138c127962c02
144382ab91c9b
152205523c45d
hex11ea34e4421

1231100462113 has 16 divisors (see below), whose sum is σ = 1245414792960. Its totient is φ = 1216833940224.

The previous prime is 1231100462051. The next prime is 1231100462203. The reversal of 1231100462113 is 3112640011321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1231100462113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231100462213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130505245 + ... + 130514677.

It is an arithmetic number, because the mean of its divisors is an integer number (77838424560).

Almost surely, 21231100462113 is an apocalyptic number.

It is an amenable number.

1231100462113 is a deficient number, since it is larger than the sum of its proper divisors (14314330847).

1231100462113 is a wasteful number, since it uses less digits than its factorization.

1231100462113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11808.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 1231100462113 its reverse (3112640011321), we get a palindrome (4343740473434).

The spelling of 1231100462113 in words is "one trillion, two hundred thirty-one billion, one hundred million, four hundred sixty-two thousand, one hundred thirteen".

Divisors: 1 103 983 1289 9433 101249 132767 971599 1267087 9272639 12159137 130509961 955081817 1252391111 11952431671 1231100462113