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2031203431213 = 11541831741039
BaseRepresentation
bin11101100011101101001…
…010001011001100101101
321012011220001121101121121
4131203231022023030231
5231234401034244323
64153042202500541
7266515054202515
oct35435512131455
97164801541547
102031203431213
11713479424570
122897b1b04751
13119707052638
147044ca7c845
1537c825bda5d
hex1d8ed28b32d

2031203431213 has 16 divisors (see below), whose sum is σ = 2220275162880. Its totient is φ = 1842868843200.

The previous prime is 2031203431163. The next prime is 2031203431217. The reversal of 2031203431213 is 3121343021302.

It is not a de Polignac number, because 2031203431213 - 29 = 2031203430701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031203431217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49473948 + ... + 49514986.

It is an arithmetic number, because the mean of its divisors is an integer number (138767197680).

Almost surely, 22031203431213 is an apocalyptic number.

It is an amenable number.

2031203431213 is a deficient number, since it is larger than the sum of its proper divisors (189071731667).

2031203431213 is a wasteful number, since it uses less digits than its factorization.

2031203431213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49908.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 2031203431213 its reverse (3121343021302), we get a palindrome (5152546452515).

The spelling of 2031203431213 in words is "two trillion, thirty-one billion, two hundred three million, four hundred thirty-one thousand, two hundred thirteen".

Divisors: 1 11 541 5951 8317 41039 91487 451429 4499497 22202099 49494467 244223089 341321363 3754534993 184654857383 2031203431213