11433640431 has 8 divisors (see below), whose sum is σ = 16047214720. Its totient is φ = 7221246552.

The previous prime is 11433640429. The next prime is 11433640453. The reversal of 11433640431 is 13404633411.

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

It is not a de Polignac number, because 11433640431 - 2¹ = 11433640429 is a prime.

It is a super-2 number, since 2×11433640431² (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 (11433640481) 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, 100295035 + ... + 100295148.

It is an arithmetic number, because the mean of its divisors is an integer number (2005901840).

Almost surely, 2^11433640431 is an apocalyptic number.

11433640431 is a deficient number, since it is larger than the sum of its proper divisors (4613574289).

11433640431 is a wasteful number, since it uses less digits than its factorization.

11433640431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200590205.

The product of its (nonzero) digits is 10368, while the sum is 30.

The spelling of 11433640431 in words is "eleven billion, four hundred thirty-three million, six hundred forty thousand, four hundred thirty-one".