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31203104040201 = 361891915828823
BaseRepresentation
bin1110001100001000010011…
…11011101010010100001001
311002110222122222012110010110
413012010021323222110021
513042212424113241301
6150210301430104533
76400231002115152
oct706041173522411
9132428588173113
1031203104040201
119a40186849525
1235bb4544ab149
131454594b37c22
1479c349c40929
153919e725a0d6
hex1c6109eea509

31203104040201 has 16 divisors (see below), whose sum is σ = 42761299351680. Its totient is φ = 20231152360320.

The previous prime is 31203104040197. The next prime is 31203104040209. The reversal of 31203104040201 is 10204040130213.

It is not a de Polignac number, because 31203104040201 - 22 = 31203104040197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31203104040209) 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, 957898125 + ... + 957930698.

It is an arithmetic number, because the mean of its divisors is an integer number (2672581209480).

Almost surely, 231203104040201 is an apocalyptic number.

It is an amenable number.

31203104040201 is a deficient number, since it is larger than the sum of its proper divisors (11558195311479).

31203104040201 is a wasteful number, since it uses less digits than its factorization.

31203104040201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915828976.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31203104040201 its reverse (10204040130213), we get a palindrome (41407144170414).

The spelling of 31203104040201 in words is "thirty-one trillion, two hundred three billion, one hundred four million, forty thousand, two hundred one".

Divisors: 1 3 61 89 183 267 5429 16287 1915828823 5747486469 116865558203 170508765247 350596674609 511526295741 10401034680067 31203104040201