1231242201400 has 48 divisors (see below), whose sum is σ = 2864839060440. Its totient is φ = 492118224000.

The previous prime is 1231242201389. The next prime is 1231242201437. The reversal of 1231242201400 is 41022421321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2105754 + ... + 2626153.

Almost surely, 2^{1231242201400} is an apocalyptic number.

1231242201400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1231242201400 is an abundant number, since it is smaller than the sum of its proper divisors (1633596859040).

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

1231242201400 is a wasteful number, since it uses less digits than its factorization.

1231242201400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4733224 (or 4733215 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1231242201400 its reverse (41022421321), we get a palindrome (1272264622721).

The spelling of 1231242201400 in words is "one trillion, two hundred thirty-one billion, two hundred forty-two million, two hundred one thousand, four hundred".