431401121012 has 6 divisors (see below), whose sum is σ = 754951961778. Its totient is φ = 215700560504.

The previous prime is 431401120999. The next prime is 431401121051. The reversal of 431401121012 is 210121104134.

It can be written as a sum of positive squares in only one way, i.e., 290989040356 + 140412080656 = 539434^2 + 374716^2 .

It is a super-2 number, since 2×431401121012² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53925140123 + ... + 53925140130.

It is an arithmetic number, because the mean of its divisors is an integer number (125825326963).

Almost surely, 2^431401121012 is an apocalyptic number.

It is an amenable number.

431401121012 is a deficient number, since it is larger than the sum of its proper divisors (323550840766).

431401121012 is a wasteful number, since it uses less digits than its factorization.

431401121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107850280257 (or 107850280255 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 431401121012 its reverse (210121104134), we get a palindrome (641522225146).

The spelling of 431401121012 in words is "four hundred thirty-one billion, four hundred one million, one hundred twenty-one thousand, twelve".