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120004125881 is a prime number
BaseRepresentation
bin110111111000011001…
…1011010010010111001
3102110202021221020010212
41233300303122102321
53431232024012011
6131043520520505
711445546145133
oct1576063322271
9373667836125
10120004125881
1146991222a42
121b311180135
13b416000313
145b45adc053
1531c551d08b
hex1bf0cda4b9

120004125881 has 2 divisors, whose sum is σ = 120004125882. Its totient is φ = 120004125880.

The previous prime is 120004125827. The next prime is 120004125887. The reversal of 120004125881 is 188521400021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61484161600 + 58519964281 = 247960^2 + 241909^2 .

It is a cyclic number.

It is not a de Polignac number, because 120004125881 - 234 = 102824256697 is a prime.

It is a super-2 number, since 2×1200041258812 (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120004125887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60002062940 + 60002062941.

It is an arithmetic number, because the mean of its divisors is an integer number (60002062941).

Almost surely, 2120004125881 is an apocalyptic number.

It is an amenable number.

120004125881 is a deficient number, since it is larger than the sum of its proper divisors (1).

120004125881 is an equidigital number, since it uses as much as digits as its factorization.

120004125881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5120, while the sum is 32.

The spelling of 120004125881 in words is "one hundred twenty billion, four million, one hundred twenty-five thousand, eight hundred eighty-one".