1101203431 has 2 divisors, whose sum is σ = 1101203432. Its totient is φ = 1101203430.

The previous prime is 1101203401. The next prime is 1101203437. The reversal of 1101203431 is 1343021011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1101203431 - 2¹³ = 1101195239 is a prime.

It is a super-2 number, since 2×1101203431² = 2425297992892343522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101203437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550601715 + 550601716.

It is an arithmetic number, because the mean of its divisors is an integer number (550601716).

Almost surely, 2^1101203431 is an apocalyptic number.

1101203431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101203431 is an equidigital number, since it uses as much as digits as its factorization.

1101203431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1101203431 is about 33184.3853491367. The cubic root of 1101203431 is about 1032.6564261042.

Adding to 1101203431 its reverse (1343021011), we get a palindrome (2444224442).

The spelling of 1101203431 in words is "one billion, one hundred one million, two hundred three thousand, four hundred thirty-one".