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311201102113 = 1128291009283
BaseRepresentation
bin1001000011101010000…
…01111111100100100001
31002202021010202222012221
410201311001333210201
520044314440231423
6354544103351041
731324565502616
oct4416501774441
91082233688187
10311201102113
1110aa85a00090
1250390752481
1323466608095
14110c2a0050d
158165c23e5d
hex487507f921

311201102113 has 4 divisors (see below), whose sum is σ = 339492111408. Its totient is φ = 282910092820.

The previous prime is 311201102083. The next prime is 311201102117.

It is a happy number.

311201102113 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-311201102113 is a prime.

It is a super-2 number, since 2×3112011021132 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311201102117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14145504631 + ... + 14145504652.

It is an arithmetic number, because the mean of its divisors is an integer number (84873027852).

Almost surely, 2311201102113 is an apocalyptic number.

It is an amenable number.

311201102113 is a deficient number, since it is larger than the sum of its proper divisors (28291009295).

311201102113 is a wasteful number, since it uses less digits than its factorization.

311201102113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28291009294.

The product of its (nonzero) digits is 36, while the sum is 16.

It can be divided in two parts, 311201 and 102113, that added together give a palindrome (413314).

The spelling of 311201102113 in words is "three hundred eleven billion, two hundred one million, one hundred two thousand, one hundred thirteen".

Divisors: 1 11 28291009283 311201102113