11421312333431 has 128 divisors (see below), whose sum is σ = 15660933120000. Its totient is φ = 8042794560000.

The previous prime is 11421312333419. The next prime is 11421312333443. The reversal of 11421312333431 is 13433321312411.

It is an interprime number because it is at equal distance from previous prime (11421312333419) and next prime (11421312333443).

It is a cyclic number.

It is not a de Polignac number, because 11421312333431 - 2¹⁴ = 11421312317047 is a prime.

It is a super-2 number, since 2×11421312333431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11421312333401) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3808372070 + ... + 3808375068.

It is an arithmetic number, because the mean of its divisors is an integer number (122351040000).

Almost surely, 2^{11421312333431} is an apocalyptic number.

11421312333431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11421312333431 is a deficient number, since it is larger than the sum of its proper divisors (4239620786569).

11421312333431 is a wasteful number, since it uses less digits than its factorization.

11421312333431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3541.

The product of its digits is 15552, while the sum is 32.

Adding to 11421312333431 its reverse (13433321312411), we get a palindrome (24854633645842).

The spelling of 11421312333431 in words is "eleven trillion, four hundred twenty-one billion, three hundred twelve million, three hundred thirty-three thousand, four hundred thirty-one".