11111312101431 has 8 divisors (see below), whose sum is σ = 14815103682304. Its totient is φ = 7407530960760.

The previous prime is 11111312101423. The next prime is 11111312101433. The reversal of 11111312101431 is 13410121311111.

11111312101431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11111312101431 - 2³ = 11111312101423 is a prime.

It is a super-2 number, since 2×11111312101431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11111312101398 and 11111312101407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111312101433) 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, 354210 + ... + 4727376.

It is an arithmetic number, because the mean of its divisors is an integer number (1851887960288).

Almost surely, 2^{11111312101431} is an apocalyptic number.

11111312101431 is a deficient number, since it is larger than the sum of its proper divisors (3703791580873).

11111312101431 is an equidigital number, since it uses as much as digits as its factorization.

11111312101431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5220101.

The product of its (nonzero) digits is 72, while the sum is 21.

Adding to 11111312101431 its reverse (13410121311111), we get a palindrome (24521433412542).

The spelling of 11111312101431 in words is "eleven trillion, one hundred eleven billion, three hundred twelve million, one hundred one thousand, four hundred thirty-one".