1011404231 has 4 divisors (see below), whose sum is σ = 1055378352. Its totient is φ = 967430112.

The previous prime is 1011404227. The next prime is 1011404267. The reversal of 1011404231 is 1324041101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1324041101 = 853 ⋅1552217.

It is a cyclic number.

It is not a de Polignac number, because 1011404231 - 2² = 1011404227 is a prime.

It is a super-2 number, since 2×1011404231² = 2045877036969402722, 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 (1011404201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21987026 + ... + 21987071.

It is an arithmetic number, because the mean of its divisors is an integer number (263844588).

Almost surely, 2^1011404231 is an apocalyptic number.

1011404231 is a deficient number, since it is larger than the sum of its proper divisors (43974121).

1011404231 is an equidigital number, since it uses as much as digits as its factorization.

1011404231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43974120.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1011404231 is about 31802.5821435933. The cubic root of 1011404231 is about 1003.7870504777.

Adding to 1011404231 its reverse (1324041101), we get a palindrome (2335445332).

The spelling of 1011404231 in words is "one billion, eleven million, four hundred four thousand, two hundred thirty-one".