1231413404250 has 32 divisors (see below), whose sum is σ = 3073607858880. Its totient is φ = 328376907600.

The previous prime is 1231413404239. The next prime is 1231413404261. The reversal of 1231413404250 is 524043141321.

It is an interprime number because it is at equal distance from previous prime (1231413404239) and next prime (1231413404261).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 820941520 + ... + 820943019.

It is an arithmetic number, because the mean of its divisors is an integer number (96050245590).

Almost surely, 2^{1231413404250} is an apocalyptic number.

1231413404250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231413404250 is an abundant number, since it is smaller than the sum of its proper divisors (1842194454630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231413404250 is a wasteful number, since it uses less digits than its factorization.

1231413404250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641884559 (or 1641884549 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 1231413404250 its reverse (524043141321), we get a palindrome (1755456545571).

The spelling of 1231413404250 in words is "one trillion, two hundred thirty-one billion, four hundred thirteen million, four hundred four thousand, two hundred fifty".