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13131020103 = 341106756261
BaseRepresentation
bin11000011101010101…
…10111011101000111
31020220010022221020220
430032222313131013
5203343020120403
610010551155423
7643253554305
oct141652673507
936803287226
1013131020103
115629133833
122665675b73
1313135868a6
148c7d13275
1551cbd2953
hex30eab7747

13131020103 has 8 divisors (see below), whose sum is σ = 17935052016. Its totient is φ = 8540500800.

The previous prime is 13131020087. The next prime is 13131020107. The reversal of 13131020103 is 30102013131.

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

It is not a de Polignac number, because 13131020103 - 24 = 13131020087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131020107) 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, 53378008 + ... + 53378253.

It is an arithmetic number, because the mean of its divisors is an integer number (2241881502).

Almost surely, 213131020103 is an apocalyptic number.

13131020103 is a deficient number, since it is larger than the sum of its proper divisors (4804031913).

13131020103 is a wasteful number, since it uses less digits than its factorization.

13131020103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106756305.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 13131020103 its reverse (30102013131), we get a palindrome (43233033234).

The spelling of 13131020103 in words is "thirteen billion, one hundred thirty-one million, twenty thousand, one hundred three".

Divisors: 1 3 41 123 106756261 320268783 4377006701 13131020103