31523421454011 has 12 divisors (see below), whose sum is σ = 45533939340760. Its totient is φ = 21015564294240.

The previous prime is 31523421453869. The next prime is 31523421454061. The reversal of 31523421454011 is 11045412432513.

31523421454011 is a `hidden beast` number, since 3 + 1 + 5 + 2 + 34 + 214 + 5 + 401 + 1 = 666.

It is not a de Polignac number, because 31523421454011 - 2³⁴ = 31506241584827 is a prime.

It is a super-2 number, since 2×31523421454011² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31523421454061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49500 + ... + 7940358.

Almost surely, 2^{31523421454011} is an apocalyptic number.

31523421454011 is a deficient number, since it is larger than the sum of its proper divisors (14010517886749).

31523421454011 is a wasteful number, since it uses less digits than its factorization.

31523421454011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8334746 (or 8334743 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 31523421454011 its reverse (11045412432513), we get a palindrome (42568833886524).

The spelling of 31523421454011 in words is "thirty-one trillion, five hundred twenty-three billion, four hundred twenty-one million, four hundred fifty-four thousand, eleven".