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1031203030211 = 23717363113709
BaseRepresentation
bin11110000000110000111…
…11011000010011000011
310122120201022102121001122
433000120133120103003
5113343400433431321
62105421135422455
7134334113063414
oct17003037302303
93576638377048
101031203030211
11368370255372
12147a2b984a2b
137631b976423
1437ca656d80b
151bc55cc88ab
hexf0187d84c3

1031203030211 has 32 divisors (see below), whose sum is σ = 1107975075840. Its totient is φ = 957564115200.

The previous prime is 1031203030183. The next prime is 1031203030213. The reversal of 1031203030211 is 1120303021301.

It is not a de Polignac number, because 1031203030211 - 210 = 1031203029187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1031203030211.

It is not an unprimeable number, because it can be changed into a prime (1031203030213) 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, 75214025 + ... + 75227733.

It is an arithmetic number, because the mean of its divisors is an integer number (34624221120).

Almost surely, 21031203030211 is an apocalyptic number.

1031203030211 is a deficient number, since it is larger than the sum of its proper divisors (76772045629).

1031203030211 is a wasteful number, since it uses less digits than its factorization.

1031203030211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14507.

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

Adding to 1031203030211 its reverse (1120303021301), we get a palindrome (2151506051512).

The spelling of 1031203030211 in words is "one trillion, thirty-one billion, two hundred three million, thirty thousand, two hundred eleven".

Divisors: 1 23 71 73 631 1633 1679 5183 13709 14513 44801 46063 119209 315307 973339 1000757 1030423 1059449 3270473 8650379 22386797 23017411 71053747 75220879 198958717 614176909 631477667 1634236181 14126068907 14523986341 44834914357 1031203030211