11211230310 has 64 divisors (see below), whose sum is σ = 30759962112. Its totient is φ = 2561803776.

The previous prime is 11211230257. The next prime is 11211230311. The reversal of 11211230310 is 1303211211.

It is a happy number.

It is a super-2 number, since 2×11211230310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11211230310.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211230311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1006029 + ... + 1017111.

It is an arithmetic number, because the mean of its divisors is an integer number (480624408).

Almost surely, 2^11211230310 is an apocalyptic number.

11211230310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11211230310 is an abundant number, since it is smaller than the sum of its proper divisors (19548731802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11211230310 is a wasteful number, since it uses less digits than its factorization.

11211230310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15917.

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

Adding to 11211230310 its reverse (1303211211), we get a palindrome (12514441521).

The spelling of 11211230310 in words is "eleven billion, two hundred eleven million, two hundred thirty thousand, three hundred ten".