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1331210231013 = 31334133595667
BaseRepresentation
bin10011010111110010010…
…100000001110011100101
311201021002022220110110010
4103113302110001303211
5133302304304343023
62455314411120433
7165114426156465
oct23276224016345
94637068813403
101331210231013
1147362151a743
12195bb7743119
13986c0126760
1448606627ba5
1524963e0b093
hex135f2501ce5

1331210231013 has 8 divisors (see below), whose sum is σ = 1911481357408. Its totient is φ = 819206295984.

The previous prime is 1331210230963. The next prime is 1331210231051. The reversal of 1331210231013 is 3101320121331.

It is a happy number.

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

It is not a de Polignac number, because 1331210231013 - 212 = 1331210226917 is a prime.

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 (1331210231093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17066797795 + ... + 17066797872.

It is an arithmetic number, because the mean of its divisors is an integer number (238935169676).

Almost surely, 21331210231013 is an apocalyptic number.

1331210231013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1331210231013 is a deficient number, since it is larger than the sum of its proper divisors (580271126395).

1331210231013 is a wasteful number, since it uses less digits than its factorization.

1331210231013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34133595683.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1331210231013 its reverse (3101320121331), we get a palindrome (4432530352344).

The spelling of 1331210231013 in words is "one trillion, three hundred thirty-one billion, two hundred ten million, two hundred thirty-one thousand, thirteen".

Divisors: 1 3 13 39 34133595667 102400787001 443736743671 1331210231013