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130331421231 = 31129672032649
BaseRepresentation
bin111100101100001011…
…0111010101000101111
3110110102000120012002020
41321120112322220233
54113404320434411
6135512354401223
712262506542004
oct1713026725057
9413360505066
10130331421231
1150300764880
1221313890213
13c3a075447b
1464454db8ab
1535cbecc606
hex1e585baa2f

130331421231 has 32 divisors (see below), whose sum is σ = 199037088000. Its totient is φ = 75126670080.

The previous prime is 130331421223. The next prime is 130331421323. The reversal of 130331421231 is 132124133031.

It is not a de Polignac number, because 130331421231 - 23 = 130331421223 is a prime.

It is a super-2 number, since 2×1303314212312 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130331421331) 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, 952206 + ... + 1080443.

It is an arithmetic number, because the mean of its divisors is an integer number (6219909000).

Almost surely, 2130331421231 is an apocalyptic number.

130331421231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

130331421231 is a deficient number, since it is larger than the sum of its proper divisors (68705666769).

130331421231 is a wasteful number, since it uses less digits than its factorization.

130331421231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032759.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 130331421231 its reverse (132124133031), we get a palindrome (262455554262).

The spelling of 130331421231 in words is "one hundred thirty billion, three hundred thirty-one million, four hundred twenty-one thousand, two hundred thirty-one".

Divisors: 1 3 11 29 33 67 87 201 319 737 957 1943 2211 5829 21373 64119 2032649 6097947 22359139 58946821 67077417 136187483 176840463 408562449 648415031 1498062313 1945245093 3949437007 4494186939 11848311021 43443807077 130331421231