20111200310 has 16 divisors (see below), whose sum is σ = 36230525856. Its totient is φ = 8037732288.

The previous prime is 20111200273. The next prime is 20111200357. The reversal of 20111200310 is 1300211102.

It is a super-2 number, since 2×20111200310² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20111200291 and 20111200300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 830954 + ... + 854813.

It is an arithmetic number, because the mean of its divisors is an integer number (2264407866).

Almost surely, 2^20111200310 is an apocalyptic number.

20111200310 is a deficient number, since it is larger than the sum of its proper divisors (16119325546).

20111200310 is a wasteful number, since it uses less digits than its factorization.

20111200310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686967.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 20111200310 its reverse (1300211102), we get a palindrome (21411411412).

The spelling of 20111200310 in words is "twenty billion, one hundred eleven million, two hundred thousand, three hundred ten".