1651113131 has 2 divisors, whose sum is σ = 1651113132. Its totient is φ = 1651113130.

The previous prime is 1651113119. The next prime is 1651113133. The reversal of 1651113131 is 1313111561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1651113131 - 2¹⁴ = 1651096747 is a prime.

It is a super-2 number, since 2×1651113131² = 5452349142721246322, which contains 22 as substring.

Together with 1651113133, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1651113097 and 1651113106.

It is not a weakly prime, because it can be changed into another prime (1651113133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 825556565 + 825556566.

It is an arithmetic number, because the mean of its divisors is an integer number (825556566).

Almost surely, 2^1651113131 is an apocalyptic number.

1651113131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1651113131 is an equidigital number, since it uses as much as digits as its factorization.

1651113131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 270, while the sum is 23.

The square root of 1651113131 is about 40633.8914085274. The cubic root of 1651113131 is about 1181.9314177605.

Adding to 1651113131 its reverse (1313111561), we get a palindrome (2964224692).

The spelling of 1651113131 in words is "one billion, six hundred fifty-one million, one hundred thirteen thousand, one hundred thirty-one".