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31013033131103 = 196724362162711
BaseRepresentation
bin1110000110100110010001…
…10100101011110001011111
311001210211001121020211202112
413003103020310223301133
513031104142440143403
6145543105110544235
76350421605052062
oct703231064536137
9131724047224675
1031013033131103
11997760a770281
12358a64a06807b
13143c69390998a
147930787048d9
1538bac08389d8
hex1c34c8d2bc5f

31013033131103 has 8 divisors (see below), whose sum is σ = 33132541288320. Its totient is φ = 28942249299480.

The previous prime is 31013033131081. The next prime is 31013033131117. The reversal of 31013033131103 is 30113133031013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31013033131103 - 28 = 31013033130847 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 (31013033131183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12181080083 + ... + 12181082628.

It is an arithmetic number, because the mean of its divisors is an integer number (4141567661040).

Almost surely, 231013033131103 is an apocalyptic number.

31013033131103 is a deficient number, since it is larger than the sum of its proper divisors (2119508157217).

31013033131103 is a wasteful number, since it uses less digits than its factorization.

31013033131103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24362162797.

The product of its (nonzero) digits is 729, while the sum is 23.

Adding to 31013033131103 its reverse (30113133031013), we get a palindrome (61126166162116).

The spelling of 31013033131103 in words is "thirty-one trillion, thirteen billion, thirty-three million, one hundred thirty-one thousand, one hundred three".

Divisors: 1 19 67 1273 24362162711 462881091509 1632264901637 31013033131103