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1203242131 = 71313222441
BaseRepresentation
bin100011110111000…
…0000010010010011
310002212010000220101
41013232000102103
54431012222011
6315221353231
741550250360
oct10756002223
93085100811
101203242131
11568220693
12296b68817
1316238b0c0
14b5b35467
157097b2c1
hex47b80493

1203242131 has 8 divisors (see below), whose sum is σ = 1480913504. Its totient is φ = 952015680.

The previous prime is 1203242123. The next prime is 1203242143. The reversal of 1203242131 is 1312423021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1203242131 - 23 = 1203242123 is a prime.

It is a super-2 number, since 2×12032421312 = 2895583251626842322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1203242099 and 1203242108.

It is not an unprimeable number, because it can be changed into a prime (1203242231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6611130 + ... + 6611311.

It is an arithmetic number, because the mean of its divisors is an integer number (185114188).

Almost surely, 21203242131 is an apocalyptic number.

1203242131 is a deficient number, since it is larger than the sum of its proper divisors (277671373).

1203242131 is a wasteful number, since it uses less digits than its factorization.

1203242131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13222461.

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

The square root of 1203242131 is about 34687.7807159812. The cubic root of 1203242131 is about 1063.6147303350.

Adding to 1203242131 its reverse (1312423021), we get a palindrome (2515665152).

The spelling of 1203242131 in words is "one billion, two hundred three million, two hundred forty-two thousand, one hundred thirty-one".

Divisors: 1 7 13 91 13222441 92557087 171891733 1203242131