1131121142300 has 72 divisors (see below), whose sum is σ = 2696054524800. Its totient is φ = 409999043520.

The previous prime is 1131121142287. The next prime is 1131121142321. The reversal of 1131121142300 is 32411211311.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12898190 + ... + 12985589.

Almost surely, 2^{1131121142300} is an apocalyptic number.

1131121142300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131121142300 is an abundant number, since it is smaller than the sum of its proper divisors (1564933382500).

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

1131121142300 is a wasteful number, since it uses less digits than its factorization.

1131121142300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25883835 (or 25883828 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1131121142300 its reverse (32411211311), we get a palindrome (1163532353611).

The spelling of 1131121142300 in words is "one trillion, one hundred thirty-one billion, one hundred twenty-one million, one hundred forty-two thousand, three hundred".