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131211013002 = 2321868502167
BaseRepresentation
bin111101000110011001…
…0010010101110001010
3110112200022200002011020
41322030302102232022
54122210004404002
6140135535213310
712323350131336
oct1721462225612
9415608602136
10131211013002
1150712218123
122151a377236
13c4b0a53984
1464ca2647c6
15362e3272bc
hex1e8cc92b8a

131211013002 has 8 divisors (see below), whose sum is σ = 262422026016. Its totient is φ = 43737004332.

The previous prime is 131211012967. The next prime is 131211013049. The reversal of 131211013002 is 200310112131.

It is a happy number.

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

131211013002 is an admirable number.

It is a super-2 number, since 2×1312110130022 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10934251078 + ... + 10934251089.

It is an arithmetic number, because the mean of its divisors is an integer number (32802753252).

Almost surely, 2131211013002 is an apocalyptic number.

131211013002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131211013002 is a wasteful number, since it uses less digits than its factorization.

131211013002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21868502172.

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

Adding to 131211013002 its reverse (200310112131), we get a palindrome (331521125133).

The spelling of 131211013002 in words is "one hundred thirty-one billion, two hundred eleven million, thirteen thousand, two".

Divisors: 1 2 3 6 21868502167 43737004334 65605506501 131211013002