31426324523 has 4 divisors (see below), whose sum is σ = 34283263128. Its totient is φ = 28569385920.

The previous prime is 31426324511. The next prime is 31426324537. The reversal of 31426324523 is 32542362413.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32542362413 = 11 ⋅2958396583.

It is a cyclic number.

It is not a de Polignac number, because 31426324523 - 2¹⁰ = 31426323499 is a prime.

It is a super-2 number, since 2×31426324523² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31426321523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1428469286 + ... + 1428469307.

It is an arithmetic number, because the mean of its divisors is an integer number (8570815782).

Almost surely, 2^31426324523 is an apocalyptic number.

31426324523 is a deficient number, since it is larger than the sum of its proper divisors (2856938605).

31426324523 is a wasteful number, since it uses less digits than its factorization.

31426324523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2856938604.

The product of its digits is 103680, while the sum is 35.

Adding to 31426324523 its reverse (32542362413), we get a palindrome (63968686936).

The spelling of 31426324523 in words is "thirty-one billion, four hundred twenty-six million, three hundred twenty-four thousand, five hundred twenty-three".