20151354214 has 4 divisors (see below), whose sum is σ = 30227031324. Its totient is φ = 10075677106.

The previous prime is 20151354211. The next prime is 20151354217. The reversal of 20151354214 is 41245315102.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (20151354211) and next prime (20151354217).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20151354211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5037838552 + ... + 5037838555.

It is an arithmetic number, because the mean of its divisors is an integer number (7556757831).

Almost surely, 2^20151354214 is an apocalyptic number.

20151354214 is a deficient number, since it is larger than the sum of its proper divisors (10075677110).

20151354214 is a wasteful number, since it uses less digits than its factorization.

20151354214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10075677109.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 20151354214 its reverse (41245315102), we get a palindrome (61396669316).

The spelling of 20151354214 in words is "twenty billion, one hundred fifty-one million, three hundred fifty-four thousand, two hundred fourteen".