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1210541131 = 13943320113
BaseRepresentation
bin100100000100111…
…0110010001001011
310010100211212020201
41020021312101023
54434344304011
6320042033031
741666300302
oct11011662113
93110755221
101210541131
11571356518
122994a8777
13163a45437
14b6ab5439
157141dcc1
hex4827644b

1210541131 has 8 divisors (see below), whose sum is σ = 1222126640. Its totient is φ = 1198996992.

The previous prime is 1210541119. The next prime is 1210541141. The reversal of 1210541131 is 1311450121.

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

It is a cyclic number.

It is not a de Polignac number, because 1210541131 - 229 = 673670219 is a prime.

It is a super-2 number, since 2×12105411312 = 2930819659685518322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1210541099 and 1210541108.

It is not an unprimeable number, because it can be changed into a prime (1210541141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50131 + ... + 70243.

It is an arithmetic number, because the mean of its divisors is an integer number (152765830).

Almost surely, 21210541131 is an apocalyptic number.

1210541131 is a deficient number, since it is larger than the sum of its proper divisors (11585509).

1210541131 is a wasteful number, since it uses less digits than its factorization.

1210541131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20685.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 1210541131 is about 34792.8316036508. The cubic root of 1210541131 is about 1065.7610644432.

Adding to 1210541131 its reverse (1311450121), we get a palindrome (2521991252).

The spelling of 1210541131 in words is "one billion, two hundred ten million, five hundred forty-one thousand, one hundred thirty-one".

Divisors: 1 139 433 20113 60187 2795707 8708929 1210541131