11011310431 has 8 divisors (see below), whose sum is σ = 12718947024. Its totient is φ = 9421441920.

The previous prime is 11011310423. The next prime is 11011310461. The reversal of 11011310431 is 13401311011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11011310431 - 2³ = 11011310423 is a prime.

It is a super-2 number, since 2×11011310431² (a number of 21 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 (11011310461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29441820 + ... + 29442193.

It is an arithmetic number, because the mean of its divisors is an integer number (1589868378).

Almost surely, 2^11011310431 is an apocalyptic number.

11011310431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11011310431 is a deficient number, since it is larger than the sum of its proper divisors (1707636593).

11011310431 is a wasteful number, since it uses less digits than its factorization.

11011310431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58884041.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 11011310431 its reverse (13401311011), we get a palindrome (24412621442).

The spelling of 11011310431 in words is "eleven billion, eleven million, three hundred ten thousand, four hundred thirty-one".