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130123213 = 11233147353
BaseRepresentation
bin1111100000110…
…00010111001101
3100001211221111021
413300120113031
5231302420323
620524554141
73140012653
oct760302715
9301757437
10130123213
11674a6550
12376b2951
1320c5c8ac
14133d2dd3
15b65505d
hex7c185cd

130123213 has 32 divisors (see below), whose sum is σ = 156598272. Its totient is φ = 106867200.

The previous prime is 130123211. The next prime is 130123241. The reversal of 130123213 is 312321031.

It is not a de Polignac number, because 130123213 - 21 = 130123211 is a prime.

It is a super-2 number, since 2×1301232132 = 33864101122886738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130123211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 368445 + ... + 368797.

It is an arithmetic number, because the mean of its divisors is an integer number (4893696).

Almost surely, 2130123213 is an apocalyptic number.

It is an amenable number.

130123213 is a deficient number, since it is larger than the sum of its proper divisors (26475059).

130123213 is a wasteful number, since it uses less digits than its factorization.

130123213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 130123213 is about 11407.1562187953. The cubic root of 130123213 is about 506.7396954887.

Adding to 130123213 its reverse (312321031), we get a palindrome (442444244).

The spelling of 130123213 in words is "one hundred thirty million, one hundred twenty-three thousand, two hundred thirteen".