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201203023111031 = 579184614106381
BaseRepresentation
bin101101101111111000111010…
…101110000110001101110111
3222101101211011121212010021002
4231233320322232012031313
5202333002242404023111
61551531220501513515
760244303323120404
oct5557707256061567
9871354147763232
10201203023111031
11591227a5215507
121a6965b141289b
138836495c90586
1437983c784d2ab
15183db4438663b
hexb6fe3ab86377

201203023111031 has 8 divisors (see below), whose sum is σ = 201261600371328. Its totient is φ = 201144454092000.

The previous prime is 201203023111001. The next prime is 201203023111033. The reversal of 201203023111031 is 130111320302102.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-201203023111031 is a prime.

It is a super-2 number, since 2×2012030231110312 (a number of 29 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 = 201203023110994 and 201203023111012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201203023111033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46944461 + ... + 51050841.

It is an arithmetic number, because the mean of its divisors is an integer number (25157700046416).

Almost surely, 2201203023111031 is an apocalyptic number.

201203023111031 is a deficient number, since it is larger than the sum of its proper divisors (58577260297).

201203023111031 is an equidigital number, since it uses as much as digits as its factorization.

201203023111031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4120633.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 201203023111031 its reverse (130111320302102), we get a palindrome (331314343413133).

The spelling of 201203023111031 in words is "two hundred one trillion, two hundred three billion, twenty-three million, one hundred eleven thousand, thirty-one".

Divisors: 1 5791 8461 4106381 48997651 23780052371 34744089641 201203023111031