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130311231331 = 1193109229867
BaseRepresentation
bin111100101011100100…
…1111001011101100011
3110110100121120102202011
41321113021321131203
54113334133400311
6135510353533351
712262143122221
oct1712711713543
9413317512664
10130311231331
11502a0324906
1221308b74257
13c399505798
146442963b11
1535ca340321
hex1e57279763

130311231331 has 4 divisors (see below), whose sum is σ = 130420462392. Its totient is φ = 130202000272.

The previous prime is 130311231319. The next prime is 130311231383. The reversal of 130311231331 is 133132113031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130311231331 - 225 = 130277676899 is a prime.

It is a super-2 number, since 2×1303112313312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130311238331) 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, 54613741 + ... + 54616126.

It is an arithmetic number, because the mean of its divisors is an integer number (32605115598).

Almost surely, 2130311231331 is an apocalyptic number.

130311231331 is a deficient number, since it is larger than the sum of its proper divisors (109231061).

130311231331 is a wasteful number, since it uses less digits than its factorization.

130311231331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109231060.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 130311231331 its reverse (133132113031), we get a palindrome (263443344362).

The spelling of 130311231331 in words is "one hundred thirty billion, three hundred eleven million, two hundred thirty-one thousand, three hundred thirty-one".

Divisors: 1 1193 109229867 130311231331