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131311113032023 = 1131978217184783
BaseRepresentation
bin11101110110110101000000…
…001111110101000101010111
3122012221012221020111021000121
4131312311000033311011113
5114202400124414011043
61143135254220252411
736441625535456341
oct3566650017650527
9565835836437017
10131311113032023
113892680403a901
1212888b820a1107
13583677ab31402
14245d6c563c291
15102aa83e38ded
hex776d403f5157

131311113032023 has 16 divisors (see below), whose sum is σ = 133307804336256. Its totient is φ = 129330674260480.

The previous prime is 131311113031957. The next prime is 131311113032039. The reversal of 131311113032023 is 320230311113131.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131311113032023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131311113032923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14683890 + ... + 21868672.

It is an arithmetic number, because the mean of its divisors is an integer number (8331737771016).

Almost surely, 2131311113032023 is an apocalyptic number.

131311113032023 is a deficient number, since it is larger than the sum of its proper divisors (1996691304233).

131311113032023 is a wasteful number, since it uses less digits than its factorization.

131311113032023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7185914.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 131311113032023 its reverse (320230311113131), we get a palindrome (451541424145154).

The spelling of 131311113032023 in words is "one hundred thirty-one trillion, three hundred eleven billion, one hundred thirteen million, thirty-two thousand, twenty-three".

Divisors: 1 113 197 821 22261 92773 161737 7184783 18276281 811880479 1415402251 5898706843 159940454363 666553873259 1162045248071 131311113032023