2231051143402 has 4 divisors (see below), whose sum is σ = 3346576715106. Its totient is φ = 1115525571700.

The previous prime is 2231051143369. The next prime is 2231051143417. The reversal of 2231051143402 is 2043411501322.

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

It can be written as a sum of positive squares in only one way, i.e., 1812984153841 + 418066989561 = 1346471^2 + 646581^2 .

It is a super-3 number, since 3×2231051143402³ (a number of 38 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557762785849 + ... + 557762785852.

Almost surely, 2^{2231051143402} is an apocalyptic number.

2231051143402 is a deficient number, since it is larger than the sum of its proper divisors (1115525571704).

2231051143402 is a wasteful number, since it uses less digits than its factorization.

2231051143402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115525571703.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 2231051143402 its reverse (2043411501322), we get a palindrome (4274462644724).

The spelling of 2231051143402 in words is "two trillion, two hundred thirty-one billion, fifty-one million, one hundred forty-three thousand, four hundred two".