20453357111212 has 12 divisors (see below), whose sum is σ = 35797853090776. Its totient is φ = 10225399085280.

The previous prime is 20453357111207. The next prime is 20453357111227. The reversal of 20453357111212 is 21211175335402.

It is a super-2 number, since 2×20453357111212² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319831614 + ... + 319895557.

Almost surely, 2^{20453357111212} is an apocalyptic number.

It is an amenable number.

20453357111212 is a deficient number, since it is larger than the sum of its proper divisors (15344495979564).

20453357111212 is a wasteful number, since it uses less digits than its factorization.

20453357111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639735168 (or 639735166 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 20453357111212 in words is "twenty trillion, four hundred fifty-three billion, three hundred fifty-seven million, one hundred eleven thousand, two hundred twelve".