1213202011000 has 64 divisors (see below), whose sum is σ = 3244448825280. Its totient is φ = 415954972800.

The previous prime is 1213202010973. The next prime is 1213202011027. The reversal of 1213202011000 is 1102023121.

It is an interprime number because it is at equal distance from previous prime (1213202010973) and next prime (1213202011027).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86650287 + ... + 86664286.

It is an arithmetic number, because the mean of its divisors is an integer number (50694512895).

Almost surely, 2^{1213202011000} is an apocalyptic number.

1213202011000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213202011000 is an abundant number, since it is smaller than the sum of its proper divisors (2031246814280).

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

1213202011000 is a wasteful number, since it uses less digits than its factorization.

1213202011000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173314601 (or 173314587 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1213202011000 its reverse (1102023121), we get a palindrome (1214304034121).

The spelling of 1213202011000 in words is "one trillion, two hundred thirteen billion, two hundred two million, eleven thousand".