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310020321133 = 1922633265331
BaseRepresentation
bin1001000001011101010…
…01101010111101101101
31002122012211221002020001
410200232221222331231
520034410200234013
6354231003224301
731253410151515
oct4405651527555
91078184832201
10310020321133
1110a52a430936
1250101218091
1323308ab2703
141100dc74845
1580e7232ddd
hex482ea6af6d

310020321133 has 12 divisors (see below), whose sum is σ = 328440153888. Its totient is φ = 292586629320.

The previous prime is 310020321101. The next prime is 310020321137. The reversal of 310020321133 is 331123020013.

It is not a de Polignac number, because 310020321133 - 25 = 310020321101 is a prime.

It is a super-2 number, since 2×3100203211332 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 310020321133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310020321137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1537723 + ... + 1727608.

It is an arithmetic number, because the mean of its divisors is an integer number (27370012824).

Almost surely, 2310020321133 is an apocalyptic number.

It is an amenable number.

310020321133 is a deficient number, since it is larger than the sum of its proper divisors (18419832755).

310020321133 is a wasteful number, since it uses less digits than its factorization.

310020321133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3265632 (or 3265613 counting only the distinct ones).

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

Adding to 310020321133 its reverse (331123020013), we get a palindrome (641143341146).

The spelling of 310020321133 in words is "three hundred ten billion, twenty million, three hundred twenty-one thousand, one hundred thirty-three".

Divisors: 1 19 263 361 4997 94943 3265331 62041289 858782053 1178784491 16316859007 310020321133