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23131400331 = 313593112829
BaseRepresentation
bin10101100010101111…
…010010100010001011
32012201001210212221210
4111202233102202023
5334333114302311
614343150104203
71446134441634
oct254257224213
965631725853
1023131400331
1198a0088486
1245967ab063
132248378140
14119613488b
15905b183a6
hex562bd288b

23131400331 has 8 divisors (see below), whose sum is σ = 33214318480. Its totient is φ = 14234707872.

The previous prime is 23131400321. The next prime is 23131400359. The reversal of 23131400331 is 13300413132.

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

It is not a de Polignac number, because 23131400331 - 26 = 23131400267 is a prime.

It is a super-2 number, since 2×231314003312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23131400298 and 23131400307.

It is not an unprimeable number, because it can be changed into a prime (23131400321) 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 7 ways as a sum of consecutive naturals, for example, 296556376 + ... + 296556453.

It is an arithmetic number, because the mean of its divisors is an integer number (4151789810).

Almost surely, 223131400331 is an apocalyptic number.

23131400331 is a deficient number, since it is larger than the sum of its proper divisors (10082918149).

23131400331 is a wasteful number, since it uses less digits than its factorization.

23131400331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593112845.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 23131400331 its reverse (13300413132), we get a palindrome (36431813463).

The spelling of 23131400331 in words is "twenty-three billion, one hundred thirty-one million, four hundred thousand, three hundred thirty-one".

Divisors: 1 3 13 39 593112829 1779338487 7710466777 23131400331