20115312355234 has 8 divisors (see below), whose sum is σ = 30988454168988. Its totient is φ = 9785827632240.

The previous prime is 20115312355217. The next prime is 20115312355241. The reversal of 20115312355234 is 43255321351102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19813653270009 + 301659085225 = 4451253^2 + 549235^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20115312355234² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 20115312355193 and 20115312355202.

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, 135914272597 + ... + 135914272744.

Almost surely, 2^{20115312355234} is an apocalyptic number.

20115312355234 is a deficient number, since it is larger than the sum of its proper divisors (10873141813754).

20115312355234 is a wasteful number, since it uses less digits than its factorization.

20115312355234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271828545380.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 20115312355234 in words is "twenty trillion, one hundred fifteen billion, three hundred twelve million, three hundred fifty-five thousand, two hundred thirty-four".