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102320130331 = 114031897301
BaseRepresentation
bin101111101001011000…
…0010100100100011011
3100210002212101011201201
41133102300110210123
53134022423132311
6115001043255031
710251405520606
oct1372260244433
9323085334651
10102320130331
113a437056391
12179b697a477
1398583b2423
144d4924d33d
1529dcc859c1
hex17d2c1491b

102320130331 has 4 divisors (see below), whose sum is σ = 102321141664. Its totient is φ = 102319119000.

The previous prime is 102320130301. The next prime is 102320130347. The reversal of 102320130331 is 133031023201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 102320130331 - 211 = 102320128283 is a prime.

It is a super-2 number, since 2×1023201303312 (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 = 102320130299 and 102320130308.

It is not an unprimeable number, because it can be changed into a prime (102320130301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334620 + ... + 562681.

It is an arithmetic number, because the mean of its divisors is an integer number (25580285416).

Almost surely, 2102320130331 is an apocalyptic number.

102320130331 is a deficient number, since it is larger than the sum of its proper divisors (1011333).

102320130331 is an equidigital number, since it uses as much as digits as its factorization.

102320130331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011332.

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

Adding to 102320130331 its reverse (133031023201), we get a palindrome (235351153532).

The spelling of 102320130331 in words is "one hundred two billion, three hundred twenty million, one hundred thirty thousand, three hundred thirty-one".

Divisors: 1 114031 897301 102320130331