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202001201031 = 37131495114831
BaseRepresentation
bin1011110000100000110…
…1011011011110000111
3201022101210220020020010
42330020031123132013
511302144301413111
6232444214441303
720410530610230
oct2741015333607
9638353806203
10202001201031
1178739459153
1233195963233
1316082ac70b6
149ac3bb0087
1553c3ec2aa6
hex2f0835b787

202001201031 has 32 divisors (see below), whose sum is σ = 310244622336. Its totient is φ = 114517260000.

The previous prime is 202001201011. The next prime is 202001201099. The reversal of 202001201031 is 130102100202.

It is not a de Polignac number, because 202001201031 - 27 = 202001200903 is a prime.

It is a super-2 number, since 2×2020012010312 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202001200998 and 202001201016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202001201011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13612786 + ... + 13627616.

It is an arithmetic number, because the mean of its divisors is an integer number (9695144448).

Almost surely, 2202001201031 is an apocalyptic number.

202001201031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

202001201031 is a deficient number, since it is larger than the sum of its proper divisors (108243421305).

202001201031 is a wasteful number, since it uses less digits than its factorization.

202001201031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19923.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 202001201031 its reverse (130102100202), we get a palindrome (332103301233).

The spelling of 202001201031 in words is "two hundred two billion, one million, two hundred one thousand, thirty-one".

Divisors: 1 3 7 21 131 393 917 2751 4951 14831 14853 34657 44493 103817 103971 311451 648581 1942861 1945743 4540067 5828583 13600027 13620201 40800081 73428281 220284843 513997967 1541993901 9619104811 28857314433 67333733677 202001201031