335136126431 has 4 divisors (see below), whose sum is σ = 335138766600. Its totient is φ = 335133486264.

The previous prime is 335136126421. The next prime is 335136126449. The reversal of 335136126431 is 134621631533.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-335136126431 is a prime.

It is a super-2 number, since 2×335136126431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (335136126421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1119521 + ... + 1386938.

It is an arithmetic number, because the mean of its divisors is an integer number (83784691650).

Almost surely, 2^335136126431 is an apocalyptic number.

335136126431 is a deficient number, since it is larger than the sum of its proper divisors (2640169).

335136126431 is a wasteful number, since it uses less digits than its factorization.

335136126431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2640168.

The product of its digits is 116640, while the sum is 38.

Adding to 335136126431 its reverse (134621631533), we get a palindrome (469757757964).

The spelling of 335136126431 in words is "three hundred thirty-five billion, one hundred thirty-six million, one hundred twenty-six thousand, four hundred thirty-one".