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130111203031 = 731782345247
BaseRepresentation
bin111100100101100111…
…0110110011011010111
3110102211200011221111121
41321023032312123113
54112431431444111
6135434450344411
712254163656305
oct1711316663327
9412750157447
10130111203031
11501a8422667
1221271b8b107
13c366c3b644
146424175275
1535b79cc871
hex1e4b3b66d7

130111203031 has 4 divisors (see below), whose sum is σ = 131893548352. Its totient is φ = 128328857712.

The previous prime is 130111203029. The next prime is 130111203041. The reversal of 130111203031 is 130302111031.

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 130111203031 - 21 = 130111203029 is a prime.

It is a super-2 number, since 2×1301112030312 (a number of 23 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 = 130111202996 and 130111203014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130111203041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 891172551 + ... + 891172696.

It is an arithmetic number, because the mean of its divisors is an integer number (32973387088).

Almost surely, 2130111203031 is an apocalyptic number.

130111203031 is a deficient number, since it is larger than the sum of its proper divisors (1782345321).

130111203031 is an equidigital number, since it uses as much as digits as its factorization.

130111203031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782345320.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 130111203031 its reverse (130302111031), we get a palindrome (260413314062).

The spelling of 130111203031 in words is "one hundred thirty billion, one hundred eleven million, two hundred three thousand, thirty-one".

Divisors: 1 73 1782345247 130111203031