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121202412130031 = 3113184649352579
BaseRepresentation
bin11011100011101110100010…
…101110001000111011101111
3120220010211121111100001021012
4123203232202232020323233
5111341240020001130111
61105435341445455435
734346404521514241
oct3343564256107357
9526124544301235
10121202412130031
11356897219a82a1
1211715a0a71157b
13528245268954b
1421d0329a94091
15e02b45eb148b
hex6e3ba2b88eef

121202412130031 has 16 divisors (see below), whose sum is σ = 126069068928000. Its totient is φ = 116395587921600.

The previous prime is 121202412130003. The next prime is 121202412130043. The reversal of 121202412130031 is 130031214202121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-121202412130031 is a prime.

It is a super-2 number, since 2×1212024121300312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121202412129979 and 121202412130006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121202412130081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343583300 + ... + 343935878.

It is an arithmetic number, because the mean of its divisors is an integer number (7879316808000).

Almost surely, 2121202412130031 is an apocalyptic number.

121202412130031 is a deficient number, since it is larger than the sum of its proper divisors (4866656797969).

121202412130031 is a wasteful number, since it uses less digits than its factorization.

121202412130031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437390.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 121202412130031 its reverse (130031214202121), we get a palindrome (251233626332152).

The spelling of 121202412130031 in words is "one hundred twenty-one trillion, two hundred two billion, four hundred twelve million, one hundred thirty thousand, thirty-one".

Divisors: 1 31 131 4061 84649 352579 2624119 10929949 11089019 46187849 343759589 1431823319 29845459771 925209252901 3909755230001 121202412130031