31401432134131 has 2 divisors, whose sum is σ = 31401432134132. Its totient is φ = 31401432134130.

The previous prime is 31401432134129. The next prime is 31401432134159. The reversal of 31401432134131 is 13143123410413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31401432134131 - 2¹ = 31401432134129 is a prime.

It is a super-3 number, since 3×31401432134131³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 31401432134129, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 31401432134093 and 31401432134102.

It is not a weakly prime, because it can be changed into another prime (31401432131131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15700716067065 + 15700716067066.

It is an arithmetic number, because the mean of its divisors is an integer number (15700716067066).

Almost surely, 2^{31401432134131} is an apocalyptic number.

31401432134131 is a deficient number, since it is larger than the sum of its proper divisors (1).

31401432134131 is an equidigital number, since it uses as much as digits as its factorization.

31401432134131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 31401432134131 its reverse (13143123410413), we get a palindrome (44544555544544).

The spelling of 31401432134131 in words is "thirty-one trillion, four hundred one billion, four hundred thirty-two million, one hundred thirty-four thousand, one hundred thirty-one".