1431133213 has 4 divisors (see below), whose sum is σ = 1432253440. Its totient is φ = 1430012988.

The previous prime is 1431133169. The next prime is 1431133217. The reversal of 1431133213 is 3123311341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3123311341 = 137 ⋅22797893.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1431133213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431133217) 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, 558195 + ... + 560752.

It is an arithmetic number, because the mean of its divisors is an integer number (358063360).

Almost surely, 2^1431133213 is an apocalyptic number.

It is an amenable number.

1431133213 is a deficient number, since it is larger than the sum of its proper divisors (1120227).

1431133213 is a wasteful number, since it uses less digits than its factorization.

1431133213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120226.

The product of its digits is 648, while the sum is 22.

The square root of 1431133213 is about 37830.3213441282. The cubic root of 1431133213 is about 1126.9206927630.

Adding to 1431133213 its reverse (3123311341), we get a palindrome (4554444554).

It can be divided in two parts, 14311 and 33213, that added together give a square (47524 = 218²).

The spelling of 1431133213 in words is "one billion, four hundred thirty-one million, one hundred thirty-three thousand, two hundred thirteen".