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131113002021 = 3117899370693
BaseRepresentation
bin111101000011011110…
…0011010010000100101
3110112102111020121100220
41322012330122100211
54122004412031041
6140122114354553
712321050062131
oct1720674322045
9415374217326
10131113002021
1150671965011
12214b158ba59
13c496658601
1464bb2303c1
153625916d66
hex1e86f1a425

131113002021 has 8 divisors (see below), whose sum is σ = 174819290400. Its totient is φ = 87407690832.

The previous prime is 131113001963. The next prime is 131113002037. The reversal of 131113002021 is 120200311131.

It is a happy number.

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

It is not a de Polignac number, because 131113002021 - 214 = 131112985637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131113002221) 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, 168351 + ... + 539043.

It is an arithmetic number, because the mean of its divisors is an integer number (21852411300).

Almost surely, 2131113002021 is an apocalyptic number.

It is an amenable number.

131113002021 is a deficient number, since it is larger than the sum of its proper divisors (43706288379).

131113002021 is a wasteful number, since it uses less digits than its factorization.

131113002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488595.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 131113002021 its reverse (120200311131), we get a palindrome (251313313152).

The spelling of 131113002021 in words is "one hundred thirty-one billion, one hundred thirteen million, two thousand, twenty-one".

Divisors: 1 3 117899 353697 370693 1112079 43704334007 131113002021