11131020030 has 64 divisors (see below), whose sum is σ = 29174681088. Its totient is φ = 2701345920.

The previous prime is 11131020001. The next prime is 11131020031. The reversal of 11131020030 is 3002013111.

It is a super-2 number, since 2×11131020030² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11131019988 and 11131020015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131020031) 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, 173304 + ... + 228683.

It is an arithmetic number, because the mean of its divisors is an integer number (455854392).

Almost surely, 2^11131020030 is an apocalyptic number.

11131020030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11131020030 is an abundant number, since it is smaller than the sum of its proper divisors (18043661058).

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

11131020030 is a wasteful number, since it uses less digits than its factorization.

11131020030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402081.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 11131020030 its reverse (3002013111), we get a palindrome (14133033141).

The spelling of 11131020030 in words is "eleven billion, one hundred thirty-one million, twenty thousand, thirty".