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1202312232031 = 173791039179603
BaseRepresentation
bin10001011111101111011…
…001001011110001011111
311020221101012120200000211
4101133233121023301133
5124144313412411111
62320200135433251
7152602263231211
oct21375731136137
94227335520024
101202312232031
11423996a02259
12175023b25827
13894ba653641
144229965c5b1
152141cbc6521
hex117ef64bc5f

1202312232031 has 16 divisors (see below), whose sum is σ = 1277631014400. Its totient is φ = 1127509746048.

The previous prime is 1202312231969. The next prime is 1202312232047. The reversal of 1202312232031 is 1302322132021.

It is a cyclic number.

It is not a de Polignac number, because 1202312232031 - 213 = 1202312223839 is a prime.

It is a super-2 number, since 2×12023122320312 (a number of 25 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 = 1202312231993 and 1202312232011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202312232061) 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, 6604476 + ... + 6784078.

It is an arithmetic number, because the mean of its divisors is an integer number (79851938400).

Almost surely, 21202312232031 is an apocalyptic number.

1202312232031 is a deficient number, since it is larger than the sum of its proper divisors (75318782369).

1202312232031 is a wasteful number, since it uses less digits than its factorization.

1202312232031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181038.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1202312232031 its reverse (1302322132021), we get a palindrome (2504634364052).

The spelling of 1202312232031 in words is "one trillion, two hundred two billion, three hundred twelve million, two hundred thirty-two thousand, thirty-one".

Divisors: 1 17 379 1039 6443 17663 179603 393781 3053251 6694277 68069537 186607517 1157182129 3172327789 70724248943 1202312232031