651235311113 has 2 divisors, whose sum is σ = 651235311114. Its totient is φ = 651235311112.

The previous prime is 651235311101. The next prime is 651235311119. The reversal of 651235311113 is 311113532156.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 527959185664 + 123276125449 = 726608^2 + 351107^2 .

It is a cyclic number.

It is not a de Polignac number, because 651235311113 - 2¹² = 651235307017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 651235311113.

It is not a weakly prime, because it can be changed into another prime (651235311119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325617655556 + 325617655557.

It is an arithmetic number, because the mean of its divisors is an integer number (325617655557).

Almost surely, 2^651235311113 is an apocalyptic number.

It is an amenable number.

651235311113 is a deficient number, since it is larger than the sum of its proper divisors (1).

651235311113 is an equidigital number, since it uses as much as digits as its factorization.

651235311113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8100, while the sum is 32.

Adding to 651235311113 its reverse (311113532156), we get a palindrome (962348843269).

The spelling of 651235311113 in words is "six hundred fifty-one billion, two hundred thirty-five million, three hundred eleven thousand, one hundred thirteen".