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2131212202030 = 253075211332449
BaseRepresentation
bin11111000000110110001…
…001010111000000101110
321112202000211202100011101
4133000312021113000232
5234404210310431110
64311022041513314
7306655265551102
oct37006611270056
97482024670141
102131212202030
1175192980027a
122a50627a283a
13125c846132c2
1475218d43902
153a68748c13a
hex1f03625702e

2131212202030 has 32 divisors (see below), whose sum is σ = 3856067661600. Its totient is φ = 848076503040.

The previous prime is 2131212202003. The next prime is 2131212202037. The reversal of 2131212202030 is 302022121312.

It is a super-2 number, since 2×21312122020302 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2131212201989 and 2131212202007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131212202037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 933246 + ... + 2265694.

It is an arithmetic number, because the mean of its divisors is an integer number (120502114425).

Almost surely, 22131212202030 is an apocalyptic number.

2131212202030 is a deficient number, since it is larger than the sum of its proper divisors (1724855459570).

2131212202030 is a wasteful number, since it uses less digits than its factorization.

2131212202030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333284.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2131212202030 its reverse (302022121312), we get a palindrome (2433234323342).

The spelling of 2131212202030 in words is "two trillion, one hundred thirty-one billion, two hundred twelve million, two hundred two thousand, thirty".

Divisors: 1 2 5 10 307 521 614 1042 1535 2605 3070 5210 159947 319894 799735 1332449 1599470 2664898 6662245 13324490 409061843 694205929 818123686 1388411858 2045309215 3471029645 4090618430 6942059290 213121220203 426242440406 1065606101015 2131212202030