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1201002002011 = 72197124417487
BaseRepresentation
bin10001011110100001010…
…011000011011001011011
311020210222220011002100001
4101132201103003121123
5124134123003031021
62315422132553431
7152524643402500
oct21364123033133
94223886132301
101201002002011
11423384358029
12174919182877
138933c0761c6
14421b36374a7
1521392b65091
hex117a14c365b

1201002002011 has 12 divisors (see below), whose sum is σ = 1404175769568. Its totient is φ = 1024204744752.

The previous prime is 1201002002009. The next prime is 1201002002041. The reversal of 1201002002011 is 1102002001021.

It is not a de Polignac number, because 1201002002011 - 21 = 1201002002009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201002002041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62199091 + ... + 62218396.

It is an arithmetic number, because the mean of its divisors is an integer number (117014647464).

Almost surely, 21201002002011 is an apocalyptic number.

1201002002011 is a deficient number, since it is larger than the sum of its proper divisors (203173767557).

1201002002011 is a wasteful number, since it uses less digits than its factorization.

1201002002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124417698 (or 124417691 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1201002002011 its reverse (1102002001021), we get a palindrome (2303004003032).

The spelling of 1201002002011 in words is "one trillion, two hundred one billion, two million, two thousand, eleven".

Divisors: 1 7 49 197 1379 9653 124417487 870922409 6096456863 24510244939 171571714573 1201002002011