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11213213300 = 2252112132133
BaseRepresentation
bin10100111000101110…
…00000111001110100
31001221110122020220022
422130113000321310
5140431040311200
65052402024312
7544605511652
oct123427007164
931843566808
1011213213300
114834626133
12220b348098
131099159c73
14785331dd2
15459658885
hex29c5c0e74

11213213300 has 18 divisors (see below), whose sum is σ = 24332673078. Its totient is φ = 4485285280.

The previous prime is 11213213279. The next prime is 11213213321. The reversal of 11213213300 is 331231211.

It is an interprime number because it is at equal distance from previous prime (11213213279) and next prime (11213213321).

It can be written as a sum of positive squares in 3 ways, for example, as 36917776 + 11176295524 = 6076^2 + 105718^2 .

It is a super-2 number, since 2×112132133002 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56065967 + ... + 56066166.

It is an arithmetic number, because the mean of its divisors is an integer number (1351815171).

Almost surely, 211213213300 is an apocalyptic number.

11213213300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11213213300 is an abundant number, since it is smaller than the sum of its proper divisors (13119459778).

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

11213213300 is a wasteful number, since it uses less digits than its factorization.

11213213300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112132147 (or 112132140 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 11213213300 its reverse (331231211), we get a palindrome (11544444511).

The spelling of 11213213300 in words is "eleven billion, two hundred thirteen million, two hundred thirteen thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 112132133 224264266 448528532 560660665 1121321330 2242642660 2803303325 5606606650 11213213300