1203712684021 has 16 divisors (see below), whose sum is σ = 1269202656960. Its totient is φ = 1138437106560.

The previous prime is 1203712683967. The next prime is 1203712684043. The reversal of 1203712684021 is 1204862173021.

It is a cyclic number.

It is not a de Polignac number, because 1203712684021 - 2⁷ = 1203712683893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203712684061) 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, 107747766 + ... + 107758936.

It is an arithmetic number, because the mean of its divisors is an integer number (79325166060).

Almost surely, 2^{1203712684021} is an apocalyptic number.

It is an amenable number.

1203712684021 is a deficient number, since it is larger than the sum of its proper divisors (65489972939).

1203712684021 is a wasteful number, since it uses less digits than its factorization.

1203712684021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20244.

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 1203712684021 in words is "one trillion, two hundred three billion, seven hundred twelve million, six hundred eighty-four thousand, twenty-one".