1230523631 has 8 divisors (see below), whose sum is σ = 1327491504. Its totient is φ = 1136287360.

The previous prime is 1230523601. The next prime is 1230523691. The reversal of 1230523631 is 1363250321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1230523631 - 2¹⁴ = 1230507247 is a prime.

It is a super-2 number, since 2×1230523631² = 3028376812898848322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230523631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230523601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681965 + ... + 683766.

It is an arithmetic number, because the mean of its divisors is an integer number (165936438).

Almost surely, 2^1230523631 is an apocalyptic number.

1230523631 is a deficient number, since it is larger than the sum of its proper divisors (96967873).

1230523631 is a wasteful number, since it uses less digits than its factorization.

1230523631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365801.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 1230523631 is about 35078.8202623748. The cubic root of 1230523631 is about 1071.5932914435.

Adding to 1230523631 its reverse (1363250321), we get a palindrome (2593773952).

The spelling of 1230523631 in words is "one billion, two hundred thirty million, five hundred twenty-three thousand, six hundred thirty-one".