1141206631 has 4 divisors (see below), whose sum is σ = 1149918264. Its totient is φ = 1132495000.

The previous prime is 1141206623. The next prime is 1141206641. The reversal of 1141206631 is 1366021411.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1141206631 - 2³ = 1141206623 is a prime.

It is a super-2 number, since 2×1141206631² = 2604705149276740322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1141206596 and 1141206605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141206611) 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, 4355620 + ... + 4355881.

It is an arithmetic number, because the mean of its divisors is an integer number (287479566).

Almost surely, 2^1141206631 is an apocalyptic number.

1141206631 is a deficient number, since it is larger than the sum of its proper divisors (8711633).

1141206631 is an equidigital number, since it uses as much as digits as its factorization.

1141206631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8711632.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1141206631 is about 33781.7499694732. The cubic root of 1141206631 is about 1045.0123640395.

The spelling of 1141206631 in words is "one billion, one hundred forty-one million, two hundred six thousand, six hundred thirty-one".