1201000431 has 12 divisors (see below), whose sum is σ = 1690051992. Its totient is φ = 758525904.

The previous prime is 1201000397. The next prime is 1201000439. The reversal of 1201000431 is 1340001021.

It is a happy number.

It is not a de Polignac number, because 1201000431 - 2¹³ = 1200992239 is a prime.

It is a super-2 number, since 2×1201000431² = 2884804070524371522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201000439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 553396 + ... + 555561.

It is an arithmetic number, because the mean of its divisors is an integer number (140837666).

Almost surely, 2^1201000431 is an apocalyptic number.

1201000431 is a deficient number, since it is larger than the sum of its proper divisors (489051561).

1201000431 is a wasteful number, since it uses less digits than its factorization.

1201000431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108998 (or 1108979 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1201000431 is about 34655.4531206851. The cubic root of 1201000431 is about 1062.9537973144.

Adding to 1201000431 its reverse (1340001021), we get a palindrome (2541001452).

The spelling of 1201000431 in words is "one billion, two hundred one million, four hundred thirty-one", and thus it is an aban number.