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43230402131 = 731877227159
BaseRepresentation
bin101000010000101110…
…111001011001010011
311010120210121222010212
4220100232321121103
51202013440332011
631505413314335
73060201232550
oct502056713123
9133523558125
1043230402131
1117374486a74
1284659359ab
1340cc407107
14214162ba27
1511d03dd08b
hexa10bb9653

43230402131 has 16 divisors (see below), whose sum is σ = 51058298880. Its totient is φ = 35818273440.

The previous prime is 43230402119. The next prime is 43230402143. The reversal of 43230402131 is 13120403234.

It is an interprime number because it is at equal distance from previous prime (43230402119) and next prime (43230402143).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-43230402131 is a prime.

It is a super-2 number, since 2×432304021312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43230402097 and 43230402106.

It is not an unprimeable number, because it can be changed into a prime (43230402151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76730 + ... + 303888.

It is an arithmetic number, because the mean of its divisors is an integer number (3191143680).

Almost surely, 243230402131 is an apocalyptic number.

43230402131 is a deficient number, since it is larger than the sum of its proper divisors (7827896749).

43230402131 is a wasteful number, since it uses less digits than its factorization.

43230402131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228074.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 43230402131 its reverse (13120403234), we get a palindrome (56350805365).

The spelling of 43230402131 in words is "forty-three billion, two hundred thirty million, four hundred two thousand, one hundred thirty-one".

Divisors: 1 7 31 217 877 6139 27187 190309 227159 1590113 7041929 49293503 199218443 1394529101 6175771733 43230402131