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11020202031 = 313926427343
BaseRepresentation
bin10100100001101101…
…01111000000101111
31001110000110021012210
422100312233000233
5140032132431111
65021305101503
7540043112616
oct122066570057
931400407183
1011020202031
114745686993
122176787893
13106817ba07
1476784c87d
154477300a6
hex290daf02f

11020202031 has 8 divisors (see below), whose sum is σ = 14799312640. Its totient is φ = 7293946392.

The previous prime is 11020201999. The next prime is 11020202041. The reversal of 11020202031 is 13020202011.

11020202031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11020202031 - 25 = 11020201999 is a prime.

It is a super-2 number, since 2×110202020312 (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 = 11020201998 and 11020202016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020202041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13213255 + ... + 13214088.

It is an arithmetic number, because the mean of its divisors is an integer number (1849914080).

Almost surely, 211020202031 is an apocalyptic number.

11020202031 is a deficient number, since it is larger than the sum of its proper divisors (3779110609).

11020202031 is a wasteful number, since it uses less digits than its factorization.

11020202031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26427485.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 11020202031 its reverse (13020202011), we get a palindrome (24040404042).

The spelling of 11020202031 in words is "eleven billion, twenty million, two hundred two thousand, thirty-one".

Divisors: 1 3 139 417 26427343 79282029 3673400677 11020202031