1031432397 has 16 divisors (see below), whose sum is σ = 1381430400. Its totient is φ = 684536832.

The previous prime is 1031432393. The next prime is 1031432411. The reversal of 1031432397 is 7932341301.

It is not a de Polignac number, because 1031432397 - 2² = 1031432393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031432393) 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, 982729 + ... + 983777.

It is an arithmetic number, because the mean of its divisors is an integer number (86339400).

Almost surely, 2^1031432397 is an apocalyptic number.

It is an amenable number.

1031432397 is a deficient number, since it is larger than the sum of its proper divisors (349998003).

1031432397 is a wasteful number, since it uses less digits than its factorization.

1031432397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2212.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 1031432397 is about 32115.9212385384. The cubic root of 1031432397 is about 1010.3695660931.

Adding to 1031432397 its reverse (7932341301), we get a palindrome (8963773698).

The spelling of 1031432397 in words is "one billion, thirty-one million, four hundred thirty-two thousand, three hundred ninety-seven".