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202013003231031 = 31914932373802931
BaseRepresentation
bin101101111011101011010001…
…010011000010111100110111
3222111021020212112100111010210
4231323223101103002330313
5202434240112311343111
61553351254214520503
760356646353415246
oct5573532123027467
9874236775314123
10202013003231031
1159405262946063
121a7a7582066133
13889498a7867a5
1437c56a544095d
151854c4d90b0a6
hexb7bad14c2f37

202013003231031 has 16 divisors (see below), whose sum is σ = 283716926432640. Its totient is φ = 127501702976160.

The previous prime is 202013003230981. The next prime is 202013003231071. The reversal of 202013003231031 is 130132300310202.

It is not a de Polignac number, because 202013003231031 - 27 = 202013003230903 is a prime.

It is a super-2 number, since 2×2020130032310312 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202013003230989 and 202013003231007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202013003231071) 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, 1186816365 + ... + 1186986566.

It is an arithmetic number, because the mean of its divisors is an integer number (17732307902040).

Almost surely, 2202013003231031 is an apocalyptic number.

202013003231031 is a deficient number, since it is larger than the sum of its proper divisors (81703923201609).

202013003231031 is a wasteful number, since it uses less digits than its factorization.

202013003231031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373804446.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 202013003231031 its reverse (130132300310202), we get a palindrome (332145303541233).

The spelling of 202013003231031 in words is "two hundred two trillion, thirteen billion, three million, two hundred thirty-one thousand, thirty-one".

Divisors: 1 3 19 57 1493 4479 28367 85101 2373802931 7121408793 45102255689 135306767067 3544087775983 10632263327949 67337667743677 202013003231031