11312210031 has 8 divisors (see below), whose sum is σ = 15569493504. Its totient is φ = 7298199960.

The previous prime is 11312210029. The next prime is 11312210047. The reversal of 11312210031 is 13001221311.

It is a happy number.

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

It is not a de Polignac number, because 11312210031 - 2¹ = 11312210029 is a prime.

It is a super-2 number, since 2×11312210031² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312210051) 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, 60818241 + ... + 60818426.

It is an arithmetic number, because the mean of its divisors is an integer number (1946186688).

Almost surely, 2^11312210031 is an apocalyptic number.

11312210031 is a deficient number, since it is larger than the sum of its proper divisors (4257283473).

11312210031 is a wasteful number, since it uses less digits than its factorization.

11312210031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121636701.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11312210031 its reverse (13001221311), we get a palindrome (24313431342).

The spelling of 11312210031 in words is "eleven billion, three hundred twelve million, two hundred ten thousand, thirty-one".