1203432131 has 4 divisors (see below), whose sum is σ = 1312835064. Its totient is φ = 1094029200.

The previous prime is 1203432079. The next prime is 1203432143. The reversal of 1203432131 is 1312343021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1203432131 - 2²² = 1199237827 is a prime.

It is a super-2 number, since 2×1203432131² = 2896497787846402322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1203432631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54701450 + ... + 54701471.

It is an arithmetic number, because the mean of its divisors is an integer number (328208766).

Almost surely, 2^1203432131 is an apocalyptic number.

1203432131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1203432131 is a deficient number, since it is larger than the sum of its proper divisors (109402933).

1203432131 is a wasteful number, since it uses less digits than its factorization.

1203432131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109402932.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1203432131 is about 34690.5193244494. The cubic root of 1203432131 is about 1063.6707113543.

Adding to 1203432131 its reverse (1312343021), we get a palindrome (2515775152).

It can be divided in two parts, 1203 and 432131, that added together give a palindrome (433334).

The spelling of 1203432131 in words is "one billion, two hundred three million, four hundred thirty-two thousand, one hundred thirty-one".