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131130213022 = 265565106511
BaseRepresentation
bin111101000011111111…
…0000100001010011110
3110112110200122000102101
41322013332010022132
54122023313304042
6140123531315314
712321346264024
oct1720776041236
9415420560371
10131130213022
115068064a986
12214b72abb3a
13c49a0a3433
1464bd630714
1536271b66b7
hex1e87f8429e

131130213022 has 4 divisors (see below), whose sum is σ = 196695319536. Its totient is φ = 65565106510.

The previous prime is 131130212989. The next prime is 131130213029. The reversal of 131130213022 is 220312031131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 220312031131 = 1712959531243.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131130213029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32782553254 + ... + 32782553257.

It is an arithmetic number, because the mean of its divisors is an integer number (49173829884).

Almost surely, 2131130213022 is an apocalyptic number.

131130213022 is a deficient number, since it is larger than the sum of its proper divisors (65565106514).

131130213022 is an equidigital number, since it uses as much as digits as its factorization.

131130213022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65565106513.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131130213022 its reverse (220312031131), we get a palindrome (351442244153).

The spelling of 131130213022 in words is "one hundred thirty-one billion, one hundred thirty million, two hundred thirteen thousand, twenty-two".

Divisors: 1 2 65565106511 131130213022