1231542210602 has 16 divisors (see below), whose sum is σ = 2034085014432. Its totient is φ = 554560212720.

The previous prime is 1231542210601. The next prime is 1231542210629. The reversal of 1231542210602 is 2060122451321.

It is not an unprimeable number, because it can be changed into a prime (1231542210601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261582653 + ... + 261587360.

It is an arithmetic number, because the mean of its divisors is an integer number (127130313402).

Almost surely, 2^{1231542210602} is an apocalyptic number.

1231542210602 is a deficient number, since it is larger than the sum of its proper divisors (802542803830).

1231542210602 is a wasteful number, since it uses less digits than its factorization.

1231542210602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523170133.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 1231542210602 its reverse (2060122451321), we get a palindrome (3291664661923).

The spelling of 1231542210602 in words is "one trillion, two hundred thirty-one billion, five hundred forty-two million, two hundred ten thousand, six hundred two".