1200101431 has 4 divisors (see below), whose sum is σ = 1225635552. Its totient is φ = 1174567312.

The previous prime is 1200101423. The next prime is 1200101443. The reversal of 1200101431 is 1341010021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1341010021 = 13 ⋅103154617.

It is a cyclic number.

It is not a de Polignac number, because 1200101431 - 2³ = 1200101423 is a prime.

It is a super-2 number, since 2×1200101431² = 2880486889376495522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200101131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12766990 + ... + 12767083.

It is an arithmetic number, because the mean of its divisors is an integer number (306408888).

Almost surely, 2^1200101431 is an apocalyptic number.

1200101431 is a deficient number, since it is larger than the sum of its proper divisors (25534121).

1200101431 is an equidigital number, since it uses as much as digits as its factorization.

1200101431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25534120.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1200101431 is about 34642.4801508206. The cubic root of 1200101431 is about 1062.6885090394.

Adding to 1200101431 its reverse (1341010021), we get a palindrome (2541111452).

The spelling of 1200101431 in words is "one billion, two hundred million, one hundred one thousand, four hundred thirty-one".