20311424402 has 16 divisors (see below), whose sum is σ = 31509250560. Its totient is φ = 9813811488.

The previous prime is 20311424377. The next prime is 20311424437. The reversal of 20311424402 is 20442411302.

It is a super-2 number, since 2×20311424402² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1360163 + ... + 1375014.

It is an arithmetic number, because the mean of its divisors is an integer number (1969328160).

Almost surely, 2^20311424402 is an apocalyptic number.

20311424402 is a deficient number, since it is larger than the sum of its proper divisors (11197826158).

20311424402 is a wasteful number, since it uses less digits than its factorization.

20311424402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735305.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20311424402 its reverse (20442411302), we get a palindrome (40753835704).

The spelling of 20311424402 in words is "twenty billion, three hundred eleven million, four hundred twenty-four thousand, four hundred two".