11312231432 has 8 divisors (see below), whose sum is σ = 21210433950. Its totient is φ = 5656115712.

The previous prime is 11312231429. The next prime is 11312231449. The reversal of 11312231432 is 23413221311.

It can be written as a sum of positive squares in only one way, i.e., 10967535076 + 344696356 = 104726^2 + 18566^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×11312231432² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11312231398 and 11312231407.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 707014457 + ... + 707014472.

Almost surely, 2^11312231432 is an apocalyptic number.

It is an amenable number.

11312231432 is a deficient number, since it is larger than the sum of its proper divisors (9898202518).

11312231432 is a wasteful number, since it uses less digits than its factorization.

11312231432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414028935 (or 1414028931 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

Adding to 11312231432 its reverse (23413221311), we get a palindrome (34725452743).

The spelling of 11312231432 in words is "eleven billion, three hundred twelve million, two hundred thirty-one thousand, four hundred thirty-two".