19020203422312 has 16 divisors (see below), whose sum is σ = 36892635948900. Its totient is φ = 9182167169280.

The previous prime is 19020203422307. The next prime is 19020203422369. The reversal of 19020203422312 is 21322430202091.

It can be written as a sum of positive squares in 2 ways, for example, as 16163407099876 + 2856796322436 = 4020374^2 + 1690206^2 .

It is a super-2 number, since 2×19020203422312² (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, 40991817489 + ... + 40991817952.

Almost surely, 2^{19020203422312} is an apocalyptic number.

It is an amenable number.

19020203422312 is a deficient number, since it is larger than the sum of its proper divisors (17872432526588).

19020203422312 is a wasteful number, since it uses less digits than its factorization.

19020203422312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81983635476 (or 81983635472 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 19020203422312 in words is "nineteen trillion, twenty billion, two hundred three million, four hundred twenty-two thousand, three hundred twelve".