11031421462531 has 4 divisors (see below), whose sum is σ = 11031771553432. Its totient is φ = 11031071371632.

The previous prime is 11031421462469. The next prime is 11031421462541. The reversal of 11031421462531 is 13526412413011.

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

It is a cyclic number.

It is not a de Polignac number, because 11031421462531 - 2³⁵ = 10997061724163 is a prime.

It is a super-2 number, since 2×11031421462531² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11031421462541) 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, 174998181 + ... + 175061206.

It is an arithmetic number, because the mean of its divisors is an integer number (2757942888358).

Almost surely, 2^{11031421462531} is an apocalyptic number.

11031421462531 is a deficient number, since it is larger than the sum of its proper divisors (350090901).

11031421462531 is an equidigital number, since it uses as much as digits as its factorization.

11031421462531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350090900.

The product of its (nonzero) digits is 17280, while the sum is 34.

Adding to 11031421462531 its reverse (13526412413011), we get a palindrome (24557833875542).

The spelling of 11031421462531 in words is "eleven trillion, thirty-one billion, four hundred twenty-one million, four hundred sixty-two thousand, five hundred thirty-one".