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3131214154121 = 7390647473191
BaseRepresentation
bin101101100100001010111…
…010000100100110001001
3102002100012200211221102002
4231210022322010212021
5402300211310412441
610354243202120345
7442136256110264
oct55441272044611
912070180757362
103131214154121
11aa7a38839869
12426a253500b5
13199370113511
14ab7a1737cdb
15566b3e8bb9b
hex2d90ae84989

3131214154121 has 8 divisors (see below), whose sum is σ = 3174149222784. Its totient is φ = 3088280213280.

The previous prime is 3131214154099. The next prime is 3131214154139. The reversal of 3131214154121 is 1214514121313.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3131214154121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3131214654121) 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, 6380636 + ... + 6853826.

It is an arithmetic number, because the mean of its divisors is an integer number (396768652848).

Almost surely, 23131214154121 is an apocalyptic number.

It is an amenable number.

3131214154121 is a deficient number, since it is larger than the sum of its proper divisors (42935068663).

3131214154121 is an equidigital number, since it uses as much as digits as its factorization.

3131214154121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563911.

The product of its digits is 2880, while the sum is 29.

Adding to 3131214154121 its reverse (1214514121313), we get a palindrome (4345728275434).

The spelling of 3131214154121 in words is "three trillion, one hundred thirty-one billion, two hundred fourteen million, one hundred fifty-four thousand, one hundred twenty-one".

Divisors: 1 73 90647 473191 6617231 34542943 42893344577 3131214154121