1352020431 has 32 divisors (see below), whose sum is σ = 1905057792. Its totient is φ = 851248640.

The previous prime is 1352020429. The next prime is 1352020463. The reversal of 1352020431 is 1340202531.

It is a cyclic number.

It is not a de Polignac number, because 1352020431 - 2¹ = 1352020429 is a prime.

It is a super-2 number, since 2×1352020431² = 3655918491682851522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1352020398 and 1352020407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1352020231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2279671 + ... + 2280263.

It is an arithmetic number, because the mean of its divisors is an integer number (59533056).

Almost surely, 2^1352020431 is an apocalyptic number.

1352020431 is a deficient number, since it is larger than the sum of its proper divisors (553037361).

1352020431 is a wasteful number, since it uses less digits than its factorization.

1352020431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1352020431 is about 36769.8304456248. The cubic root of 1352020431 is about 1105.7605326485.

Adding to 1352020431 its reverse (1340202531), we get a palindrome (2692222962).

The spelling of 1352020431 in words is "one billion, three hundred fifty-two million, twenty thousand, four hundred thirty-one".