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312213102240431 = 7193231097781081
BaseRepresentation
bin100011011111101001100011…
…1000011011010001010101111
31111221110021120220111011010002
41012333103013003122022233
5311410244413133143211
63024004415154534515
7122522436503610230
oct10677230703321257
91457407526434102
10312213102240431
11905319189216a7
122b024ba829743b
1310529752731a52
1457152a2677087
1526165a50ee03b
hex11bf4c70da2af

312213102240431 has 8 divisors (see below), whose sum is σ = 358663756239264. Its totient is φ = 266224643804160.

The previous prime is 312213102240379. The next prime is 312213102240439. The reversal of 312213102240431 is 134042201312213.

It is a happy number.

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 312213102240431 - 214 = 312213102224047 is a prime.

It is a super-2 number, since 2×3122131022404312 (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312213102240394 and 312213102240403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312213102240439) 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, 115548889190 + ... + 115548891891.

It is an arithmetic number, because the mean of its divisors is an integer number (44832969529908).

Almost surely, 2312213102240431 is an apocalyptic number.

312213102240431 is a deficient number, since it is larger than the sum of its proper divisors (46450653998833).

312213102240431 is a wasteful number, since it uses less digits than its factorization.

312213102240431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231097781281.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 312213102240431 its reverse (134042201312213), we get a palindrome (446255303552644).

The spelling of 312213102240431 in words is "three hundred twelve trillion, two hundred thirteen billion, one hundred two million, two hundred forty thousand, four hundred thirty-one".

Divisors: 1 7 193 1351 231097781081 1617684467567 44601871748633 312213102240431