11213100031 has 8 divisors (see below), whose sum is σ = 12815612064. Its totient is φ = 9610748160.

The previous prime is 11213100029. The next prime is 11213100071. The reversal of 11213100031 is 13000131211.

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

It is a cyclic number.

It is not a de Polignac number, because 11213100031 - 2¹ = 11213100029 is a prime.

It is a super-2 number, since 2×11213100031² (a number of 21 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 = 11213099984 and 11213100020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11213100071) 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, 252411 + ... + 293491.

It is an arithmetic number, because the mean of its divisors is an integer number (1601951508).

Almost surely, 2^11213100031 is an apocalyptic number.

11213100031 is a deficient number, since it is larger than the sum of its proper divisors (1602512033).

11213100031 is an equidigital number, since it uses as much as digits as its factorization.

11213100031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80081.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11213100031 its reverse (13000131211), we get a palindrome (24213231242).

The spelling of 11213100031 in words is "eleven billion, two hundred thirteen million, one hundred thousand, thirty-one".