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121203102012131 = 991127995624579
BaseRepresentation
bin11011100011101111001011…
…110101110101001011100011
3120220010220101120110200121002
4123203233023311311023203
5111341242423103342011
61105435534132222215
734346430566435306
oct3343571365651343
9526126346420532
10121203102012131
1135689a46366997
1211715b8176a96b
1352825325954c9
1421d0393556b3d
15e02b86835c3b
hex6e3bcbd752e3

121203102012131 has 8 divisors (see below), whose sum is σ = 121420266700800. Its totient is φ = 120986128577160.

The previous prime is 121203102012121. The next prime is 121203102012149. The reversal of 121203102012131 is 131210201302121.

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 121203102012131 - 26 = 121203102012067 is a prime.

It is a super-2 number, since 2×1212031020121312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121203102012121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46544801 + ... + 49079778.

It is an arithmetic number, because the mean of its divisors is an integer number (15177533337600).

Almost surely, 2121203102012131 is an apocalyptic number.

121203102012131 is a deficient number, since it is larger than the sum of its proper divisors (217164688669).

121203102012131 is an equidigital number, since it uses as much as digits as its factorization.

121203102012131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95626849.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 121203102012131 its reverse (131210201302121), we get a palindrome (252413303314252).

The spelling of 121203102012131 in words is "one hundred twenty-one trillion, two hundred three billion, one hundred two million, twelve thousand, one hundred thirty-one".

Divisors: 1 991 1279 1267489 95624579 94763957789 122303836541 121203102012131