31420635043151 has 2 divisors, whose sum is σ = 31420635043152. Its totient is φ = 31420635043150.

The previous prime is 31420635043003. The next prime is 31420635043159. The reversal of 31420635043151 is 15134053602413.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31420635043151 - 2²² = 31420630848847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31420635043159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15710317521575 + 15710317521576.

It is an arithmetic number, because the mean of its divisors is an integer number (15710317521576).

Almost surely, 2^{31420635043151} is an apocalyptic number.

31420635043151 is a deficient number, since it is larger than the sum of its proper divisors (1).

31420635043151 is an equidigital number, since it uses as much as digits as its factorization.

31420635043151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 38.

Adding to 31420635043151 its reverse (15134053602413), we get a palindrome (46554688645564).

The spelling of 31420635043151 in words is "thirty-one trillion, four hundred twenty billion, six hundred thirty-five million, forty-three thousand, one hundred fifty-one".