19020203422311 has 64 divisors (see below), whose sum is σ = 31280396026880. Its totient is φ = 10010875898880.

The previous prime is 19020203422307. The next prime is 19020203422369. The reversal of 19020203422311 is 11322430202091.

It is not a de Polignac number, because 19020203422311 - 2² = 19020203422307 is a prime.

It is a super-2 number, since 2×19020203422311² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19020203422811) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 292942131 + ... + 293007051.

It is an arithmetic number, because the mean of its divisors is an integer number (488756187920).

Almost surely, 2^{19020203422311} is an apocalyptic number.

19020203422311 is a deficient number, since it is larger than the sum of its proper divisors (12260192604569).

19020203422311 is a wasteful number, since it uses less digits than its factorization.

19020203422311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67256.

The product of its (nonzero) digits is 5184, while the sum is 30.

The spelling of 19020203422311 in words is "nineteen trillion, twenty billion, two hundred three million, four hundred twenty-two thousand, three hundred eleven".