20370223111 has 12 divisors (see below), whose sum is σ = 23764281768. Its totient is φ = 17409859152.

The previous prime is 20370223099. The next prime is 20370223213. The reversal of 20370223111 is 11132207302.

It is a happy number.

It is not a de Polignac number, because 20370223111 - 2¹³ = 20370214919 is a prime.

It is a super-3 number, since 3×20370223111³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20370220111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 582016 + ... + 616021.

It is an arithmetic number, because the mean of its divisors is an integer number (1980356814).

Almost surely, 2^20370223111 is an apocalyptic number.

20370223111 is a deficient number, since it is larger than the sum of its proper divisors (3394058657).

20370223111 is a wasteful number, since it uses less digits than its factorization.

20370223111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198398 (or 1198391 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The spelling of 20370223111 in words is "twenty billion, three hundred seventy million, two hundred twenty-three thousand, one hundred eleven".