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100302331231 = 106919381941
BaseRepresentation
bin101110101101001111…
…1000001110101011111
3100120220020112100201201
41131122133001311133
53120404344044411
6114024523020331
710150404514444
oct1353237016537
9316806470651
10100302331231
11395a1062023
121753306a6a7
1395c634566b
144bd727d9cb
152920a593c1
hex175a7c1d5f

100302331231 has 4 divisors (see below), whose sum is σ = 100311723864. Its totient is φ = 100292938600.

The previous prime is 100302331211. The next prime is 100302331333. The reversal of 100302331231 is 132133203001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132133203001 = 177772541353.

It is a cyclic number.

It is not a de Polignac number, because 100302331231 - 213 = 100302323039 is a prime.

It is a super-2 number, since 2×1003023312312 (a number of 23 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 = 100302331199 and 100302331208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100302331211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4680280 + ... + 4701661.

It is an arithmetic number, because the mean of its divisors is an integer number (25077930966).

Almost surely, 2100302331231 is an apocalyptic number.

100302331231 is a deficient number, since it is larger than the sum of its proper divisors (9392633).

100302331231 is an equidigital number, since it uses as much as digits as its factorization.

100302331231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9392632.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 100302331231 its reverse (132133203001), we get a palindrome (232435534232).

The spelling of 100302331231 in words is "one hundred billion, three hundred two million, three hundred thirty-one thousand, two hundred thirty-one".

Divisors: 1 10691 9381941 100302331231