1131211202000 has 80 divisors (see below), whose sum is σ = 2983929534144. Its totient is φ = 411349520000.

The previous prime is 1131211201969. The next prime is 1131211202003. The reversal of 1131211202000 is 2021121311.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×1131211202000³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131211202003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25687346 + ... + 25731345.

Almost surely, 2^{1131211202000} is an apocalyptic number.

1131211202000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131211202000 is an abundant number, since it is smaller than the sum of its proper divisors (1852718332144).

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

1131211202000 is a wasteful number, since it uses less digits than its factorization.

1131211202000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51418725 (or 51418709 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1131211202000 its reverse (2021121311), we get a palindrome (1133232323311).

The spelling of 1131211202000 in words is "one trillion, one hundred thirty-one billion, two hundred eleven million, two hundred two thousand".